[glib] Fix a translator comment

[Piotr Drąg <piotrdrag src gnome org>]

commit 79ce76021acc7635f9565ebce885d26e4f4effbb
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Thu Jan 26 04:52:17 2017 +0100

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

 gio/glocalfile.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/gio/glocalfile.c b/gio/glocalfile.c
index 8f64777..64c5b68 100644
--- a/gio/glocalfile.c
+++ b/gio/glocalfile.c
@@ -1168,11 +1168,11 @@ g_local_file_find_enclosing_mount (GFile         *file,
     return mount;
 
 error:
-  /* Translators: This is an error message when trying to find
-   * the enclosing (user visible) mount of a file, but none
-   * exists.
-   */
   g_set_io_error (error,
+                 /* Translators: This is an error message when trying to find
+                  * the enclosing (user visible) mount of a file, but none
+                  * exists.
+                  */
                  _("Containing mount for file %s not found"),
                   file, 0);