Merge mysql.com:/misc/mysql/31752_/50-31752_

into  mysql.com:/misc/mysql/31752_/51-31752_


client/mysql.cc:
  Auto merged
sql/log.cc:
  Auto merged
sql/repl_failsafe.cc:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sp.cc:
  manual merge
strings/strmake.c:
  SCCS merged
sql/unireg.cc:
  SCCS merged

client/mysql.cc

@@ -3096,7 +3096,10 @@ com_connect(String *buffer, char *line)
       Two null bytes are needed in the end of buff to allow
       get_arg to find end of string the second time it's called.
     */
-    strmake(buff, line, sizeof(buff)-2);
+    tmp= strmake(buff, line, sizeof(buff)-2);
+#ifdef EXTRA_DEBUG
+    tmp[1]= 0;
+#endif
     tmp= get_arg(buff, 0);
     if (tmp && *tmp)
     {