tests: Fixed some cppcheck warnings.

tests/benchmarks/latency.c

@@ -75,12 +75,12 @@ int benchmarks_ping_latency (const char *host, float *average){
   }
   if(!found)
     goto parseerror;
-  fclose(fd);
+  pclose(fd);
   return 0;
 
 parseerror:
   fprintf(stderr,"Parse error : couldn't locate average in %s",line);
-  fclose(fd);
+  pclose(fd);
   return -1;
 }
 

tests/torture.c

@@ -132,6 +132,7 @@ int torture_rmdirs(const char *path) {
             rewinddir(d);
         }
     } else {
+        closedir(d);
         return -1;
     }
 
@@ -257,6 +258,7 @@ failed:
     }
     ssh_disconnect(t->ssh);
     ssh_free(t->ssh);
+	free(t);
 
     return NULL;
 }