Lehel Bernadt's fix to prevent debug message to get sent on errors when

debug wasn't enabled

lib/sendf.c

@@ -154,8 +154,9 @@ void Curl_failf(struct SessionHandle *data, const char *fmt, ...)
     vsnprintf(data->set.errorbuffer, CURL_ERROR_SIZE, fmt, ap);
     data->state.errorbuf = TRUE; /* wrote error string */
 
-    Curl_debug(data, CURLINFO_TEXT, data->set.errorbuffer,
-               strlen(data->set.errorbuffer));
+    if(data->set.verbose)
+      Curl_debug(data, CURLINFO_TEXT, data->set.errorbuffer,
+                 strlen(data->set.errorbuffer));
   }
   va_end(ap);
 }