tidy-up: fix typos (#886)

detected by codespell 2.2.4.

example/direct_tcpip.c

@@ -151,7 +151,7 @@ int main(int argc, char *argv[])
         return -1;
     }
 
-    /* At this point we havn't yet authenticated.  The first thing to do
+    /* At this point we have not yet authenticated.  The first thing to do
      * is check the hostkey's fingerprint against our known hosts Your app
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call

example/scp.c

@@ -119,7 +119,7 @@ int main(int argc, char *argv[])
         return -1;
     }
 
-    /* At this point we havn't yet authenticated.  The first thing to do
+    /* At this point we have not yet authenticated.  The first thing to do
      * is check the hostkey's fingerprint against our known hosts Your app
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call

example/scp_nonblock.c

@@ -179,7 +179,7 @@ int main(int argc, char *argv[])
         return -1;
     }
 
-    /* At this point we havn't yet authenticated.  The first thing to do
+    /* At this point we have not yet authenticated.  The first thing to do
         * is check the hostkey's fingerprint against our known hosts Your app
         * may have it hard coded, may go to a file, may present it to the
         * user, that's your call

example/scp_write.c

@@ -138,7 +138,7 @@ int main(int argc, char *argv[])
         return -1;
     }
 
-    /* At this point we havn't yet authenticated.  The first thing to do
+    /* At this point we have not yet authenticated.  The first thing to do
      * is check the hostkey's fingerprint against our known hosts Your app
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call

example/scp_write_nonblock.c

@@ -172,7 +172,7 @@ int main(int argc, char *argv[])
         return -1;
     }
 
-    /* At this point we havn't yet authenticated.  The first thing to do
+    /* At this point we have not yet authenticated.  The first thing to do
      * is check the hostkey's fingerprint against our known hosts Your app
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call

example/sftp.c

@@ -186,7 +186,7 @@ int main(int argc, char *argv[])
         return -1;
     }
 
-    /* At this point we havn't yet authenticated.  The first thing to do
+    /* At this point we have not yet authenticated.  The first thing to do
      * is check the hostkey's fingerprint against our known hosts Your app
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call

example/sftp_RW_nonblock.c

@@ -150,7 +150,7 @@ int main(int argc, char *argv[])
 
     libssh2_session_set_blocking(session, 0);
 
-    /* At this point we havn't yet authenticated.  The first thing to do
+    /* At this point we have not yet authenticated.  The first thing to do
      * is check the hostkey's fingerprint against our known hosts Your app
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call

example/sftp_append.c

@@ -137,7 +137,7 @@ int main(int argc, char *argv[])
         return -1;
     }
 
-    /* At this point we havn't yet authenticated.  The first thing to do
+    /* At this point we have not yet authenticated.  The first thing to do
      * is check the hostkey's fingerprint against our known hosts Your app
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call

example/sftp_mkdir.c

@@ -117,7 +117,7 @@ int main(int argc, char *argv[])
         return -1;
     }
 
-    /* At this point we havn't yet authenticated.  The first thing to do
+    /* At this point we have not yet authenticated.  The first thing to do
      * is check the hostkey's fingerprint against our known hosts Your app
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call

example/sftp_mkdir_nonblock.c

@@ -117,7 +117,7 @@ int main(int argc, char *argv[])
         return -1;
     }
 
-    /* At this point we havn't yet authenticated.  The first thing to do
+    /* At this point we have not yet authenticated.  The first thing to do
      * is check the hostkey's fingerprint against our known hosts Your app
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call

example/sftp_nonblock.c

@@ -176,8 +176,8 @@ int main(int argc, char *argv[])
 #endif
 
     /* ... start it up. This will trade welcome banners, exchange keys,
-        * and setup crypto, compression, and MAC layers
-        */
+     * and setup crypto, compression, and MAC layers
+     */
     while((rc = libssh2_session_handshake(session, sock)) ==
            LIBSSH2_ERROR_EAGAIN);
     if(rc) {
@@ -185,11 +185,11 @@ int main(int argc, char *argv[])
         return -1;
     }
 
-    /* At this point we havn't yet authenticated.  The first thing to do
-        * is check the hostkey's fingerprint against our known hosts Your app
-        * may have it hard coded, may go to a file, may present it to the
-        * user, that's your call
-        */
+    /* At this point we have not yet authenticated.  The first thing to do
+     * is check the hostkey's fingerprint against our known hosts Your app
+     * may have it hard coded, may go to a file, may present it to the
+     * user, that's your call
+     */
     fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
     fprintf(stderr, "Fingerprint: ");
     for(i = 0; i < 20; i++) {

example/sftp_write.c

@@ -136,7 +136,7 @@ int main(int argc, char *argv[])
         return -1;
     }
 
-    /* At this point we havn't yet authenticated.  The first thing to do
+    /* At this point we have not yet authenticated.  The first thing to do
      * is check the hostkey's fingerprint against our known hosts Your app
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call

example/sftp_write_nonblock.c

@@ -168,8 +168,8 @@ int main(int argc, char *argv[])
     libssh2_session_set_blocking(session, 0);
 
     /* ... start it up. This will trade welcome banners, exchange keys,
-        * and setup crypto, compression, and MAC layers
-        */
+     * and setup crypto, compression, and MAC layers
+     */
     while((rc = libssh2_session_handshake(session, sock))
            == LIBSSH2_ERROR_EAGAIN);
     if(rc) {
@@ -177,7 +177,7 @@ int main(int argc, char *argv[])
         return -1;
     }
 
-    /* At this point we havn't yet authenticated.  The first thing to do is
+    /* At this point we have not yet authenticated.  The first thing to do is
      * check the hostkey's fingerprint against our known hosts Your app may
      * have it hard coded, may go to a file, may present it to the user,
      * that's your call

example/sftp_write_sliding.c

@@ -168,8 +168,8 @@ int main(int argc, char *argv[])
     libssh2_session_set_blocking(session, 0);
 
     /* ... start it up. This will trade welcome banners, exchange keys,
-        * and setup crypto, compression, and MAC layers
-        */
+     * and setup crypto, compression, and MAC layers
+     */
     while((rc = libssh2_session_handshake(session, sock))
            == LIBSSH2_ERROR_EAGAIN);
     if(rc) {
@@ -177,7 +177,7 @@ int main(int argc, char *argv[])
         return -1;
     }
 
-    /* At this point we havn't yet authenticated.  The first thing to do is
+    /* At this point we have not yet authenticated.  The first thing to do is
      * check the hostkey's fingerprint against our known hosts Your app may
      * have it hard coded, may go to a file, may present it to the user,
      * that's your call

example/sftpdir.c

@@ -153,7 +153,7 @@ int main(int argc, char *argv[])
         return -1;
     }
 
-    /* At this point we havn't yet authenticated.  The first thing to do
+    /* At this point we have not yet authenticated.  The first thing to do
      * is check the hostkey's fingerprint against our known hosts Your app
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call

example/sftpdir_nonblock.c

@@ -137,7 +137,7 @@ int main(int argc, char *argv[])
         return -1;
     }
 
-    /* At this point we havn't yet authenticated.  The first thing to do
+    /* At this point we have not yet authenticated.  The first thing to do
      * is check the hostkey's fingerprint against our known hosts Your app
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call

example/ssh2.c

@@ -158,7 +158,7 @@ int main(int argc, char *argv[])
         return -1;
     }
 
-    /* At this point we havn't authenticated. The first thing to do is check
+    /* At this point we have not authenticated. The first thing to do is check
      * the hostkey's fingerprint against our known hosts Your app may have it
      * hard coded, may go to a file, may present it to the user, that's your
      * call

example/ssh2_agent.c

@@ -113,7 +113,7 @@ int main(int argc, char *argv[])
         return 1;
     }
 
-    /* At this point we havn't authenticated. The first thing to do is check
+    /* At this point we have not authenticated. The first thing to do is check
      * the hostkey's fingerprint against our known hosts Your app may have it
      * hard coded, may go to a file, may present it to the user, that's your
      * call

example/subsystem_netconf.c

@@ -190,7 +190,7 @@ int main(int argc, char *argv[])
         return -1;
     }
 
-    /* At this point we havn't yet authenticated.  The first thing to do
+    /* At this point we have not yet authenticated.  The first thing to do
      * is check the hostkey's fingerprint against our known hosts Your app
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call

example/tcpip-forward.c

@@ -147,7 +147,7 @@ int main(int argc, char *argv[])
         return -1;
     }
 
-    /* At this point we havn't yet authenticated.  The first thing to do
+    /* At this point we have not yet authenticated.  The first thing to do
      * is check the hostkey's fingerprint against our known hosts Your app
      * may have it hard coded, may go to a file, may present it to the
      * user, that's your call

example/x11.c

@@ -148,7 +148,7 @@ static void x11_callback(LIBSSH2_SESSION *session, LIBSSH2_CHANNEL *channel,
             rc = connect(sock, (struct sockaddr *) &addr, sizeof(addr));
 
             if(rc != -1) {
-                /* Connection Successfull */
+                /* Connection Successful */
                 if(gp_x11_chan == NULL) {
                     /* Calloc ensure that gp_X11_chan is full of 0 */
                     gp_x11_chan = (struct chan_X11_list *)