telepathy-mission-control: Fix string max size calculation.

[George Kiagiadakis]

Module: telepathy-mission-control
Branch: master
Commit: 19f10ec2a59cadd4c59d6bc3147c612007c1c615
URL:    http://cgit.freedesktop.org/telepathy/telepathy-mission-control/commit/?id=19f10ec2a59cadd4c59d6bc3147c612007c1c615

Author: Tiago Salem Herrmann <tiagosh at gmail.com>
Date:   Wed Jan 25 15:30:04 2017 -0200

Fix string max size calculation.

Reviewed-by: George Kiagiadakis <gkiagia at tolabaki.gr>
https://github.com/TelepathyIM/telepathy-mission-control/pull/1

---

 src/mcd-connection.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mcd-connection.c b/src/mcd-connection.c
index e225da2..fe7029f 100644
--- a/src/mcd-connection.c
+++ b/src/mcd-connection.c
@@ -1396,7 +1396,7 @@ translate_g_error (GQuark domain,
 
               if (p != NULL)
                 {
-                  gchar *tmp = g_strndup (message, message - p);
+                  gchar *tmp = g_strndup (message, p - message);
 
                   /* The syntactic restrictions for error names are the same
                    * as for interface names. */