[file-roller] Fix a memory leak in the file list

[David King <davidk src gnome org>]

commit 40f6141b51e56685e978c9b3dddcc5c993f2b12f
Author: David King <dking redhat com>
Date:   Wed May 11 10:40:30 2016 +0100

    Fix a memory leak in the file list
    
    ==15644== 27 bytes in 1 blocks are definitely lost in loss record 5,387 of 23,077
    ==15644==    at 0x4C2DB9D: malloc (vg_replace_malloc.c:299)
    ==15644==    by 0x73FD038: g_malloc (gmem.c:94)
    ==15644==    by 0x741520E: g_strdup (gstrfuncs.c:363)
    ==15644==    by 0x6E818D8: g_content_type_get_description (gcontenttype.c:362)
    ==15644==    by 0x440170: fr_window_populate_file_list (fr-window.c:1612)
    ==15644==    by 0x440170: fr_window_update_file_list (fr-window.c:1950)
    ==15644==    by 0x442F94: fr_window_go_to_location (fr-window.c:7221)
    ==15644==    by 0x447B38: _archive_operation_completed (fr-window.c:3162)
    ==15644==    by 0x4485BB: archive_list_ready_cb (fr-window.c:6028)
    ==15644==    by 0x6E50D09: g_simple_async_result_complete (gsimpleasyncresult.c:801)
    ==15644==    by 0x6E50D88: complete_in_idle_cb_for_thread (gsimpleasyncresult.c:872)
    ==15644==    by 0x73F7AED: g_main_dispatch (gmain.c:3154)
    ==15644==    by 0x73F7AED: g_main_context_dispatch (gmain.c:3769)
    ==15644==    by 0x73F7E67: g_main_context_iterate.isra.29 (gmain.c:3840)
    ==15644==    by 0x73F7F0B: g_main_context_iteration (gmain.c:3901)
    ==15644==    by 0x6E86D3C: g_application_run (gapplication.c:2381)
    ==15644==    by 0x414FB5: main (main.c:38)
    
    https://bugzilla.gnome.org/show_bug.cgi?id=766271

 src/fr-window.c |    9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)
---
diff --git a/src/fr-window.c b/src/fr-window.c
index 6a6bf07..1a7e14e 100644
--- a/src/fr-window.c
+++ b/src/fr-window.c
@@ -1600,10 +1600,10 @@ fr_window_populate_file_list (FrWindow  *window,
                        g_free (s_time);
                }
                else {
-                       char       *utf8_path;
-                       char       *s_size;
-                       char       *s_time;
-                       const char *desc;
+                       char *utf8_path;
+                       char *s_size;
+                       char *s_time;
+                       char *desc;
 
                        utf8_path = g_filename_display_name (fdata->path);
 
@@ -1624,6 +1624,7 @@ fr_window_populate_file_list (FrWindow  *window,
                        g_free (utf8_path);
                        g_free (s_size);
                        g_free (s_time);
+                       g_free (desc);
                }
 
                g_free (utf8_name);