[mutter] launcher: Don't pass variable as format string

[Florian Müllner <fmuellner src gnome org>]

commit dc780d2c4450385a2fba4df34be62e0bfc838c72
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed Sep 16 17:38:10 2015 +0200

    launcher: Don't pass variable as format string
    
    We know the variable only contains one or another string literal,
    but keep compilers happy as well.

 src/backends/native/meta-launcher.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/backends/native/meta-launcher.c b/src/backends/native/meta-launcher.c
index 5ceeda7..6fc4505 100644
--- a/src/backends/native/meta-launcher.c
+++ b/src/backends/native/meta-launcher.c
@@ -63,7 +63,7 @@ report_error_and_die (const char *prefix,
   if (error)
     g_error ("%s: %s", prefix, error->message);
   else
-    g_error (prefix);
+    g_error ("%s", prefix);
 
   /* the error is not freed, but it is ok as g_error aborts the process */
 }