[mutter] Fix a translator comment

[Piotr Drąg <piotrdrag src gnome org>]

commit c7853730ed969de1ebaecfcc0eca7da8efbae4e2
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sat Jan 28 01:38:29 2017 +0100

    Fix a translator comment
    
    They need to be exactly one line above a string to show up in .po files.

 src/core/delete.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/core/delete.c b/src/core/delete.c
index 9d4d4f0..56ffa5c 100644
--- a/src/core/delete.c
+++ b/src/core/delete.c
@@ -122,8 +122,8 @@ show_delete_dialog (MetaWindow *window,
       window_title = NULL;
     }
 
-  /* Translators: %s is a window title */
   if (window_title)
+    /* Translators: %s is a window title */
     tmp = g_strdup_printf (_("“%s” is not responding."), window_title);
   else
     tmp = g_strdup (_("Application is not responding."));