[mutter] xwayland: Use %m instead of explicit strerror

[Jasper St. Pierre <jstpierre src gnome org>]

commit 14deeef8a790a66db56c86a5c316956e658a8dd4
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Thu Apr 17 14:42:41 2014 -0400

    xwayland: Use %m instead of explicit strerror

 src/wayland/meta-xwayland.c |    9 +++------
 1 files changed, 3 insertions(+), 6 deletions(-)
---
diff --git a/src/wayland/meta-xwayland.c b/src/wayland/meta-xwayland.c
index 22a77b2..8eba0e7 100644
--- a/src/wayland/meta-xwayland.c
+++ b/src/wayland/meta-xwayland.c
@@ -142,8 +142,7 @@ create_lockfile (int display, int *display_out)
           fd = open (filename, O_CLOEXEC, O_RDONLY);
           if (fd < 0 || read (fd, pid, 11) != 11)
             {
-              const char *msg = strerror (errno);
-              g_warning ("can't read lock file %s: %s", filename, msg);
+              g_warning ("can't read lock file %s: %m", filename);
               g_free (filename);
 
               /* ignore error and try the next display number */
@@ -167,8 +166,7 @@ create_lockfile (int display, int *display_out)
             {
               if (unlink (filename) < 0)
                 {
-                  const char *msg = strerror (errno);
-                  g_warning ("failed to unlink stale lock file: %s", msg);
+                  g_warning ("failed to unlink stale lock file: %m");
                   display++;
                 }
               g_free (filename);
@@ -181,8 +179,7 @@ create_lockfile (int display, int *display_out)
         }
       else if (fd < 0)
         {
-          const char *msg = strerror (errno);
-          g_warning ("failed to create lock file %s: %s", filename , msg);
+          g_warning ("failed to create lock file %s: %m", filename);
           g_free (filename);
           return NULL;
         }