[gimp] app: fix memory leak.

[Jehan Pagès <jehanp src gnome org>]

commit d228e76ebee69373c23e11883660dd62ce112bae
Author: Jehan <jehan girinstud io>
Date:   Sun Nov 26 04:01:19 2017 +0100

    app: fix memory leak.
    
    GMatchInfo data created by g_regex_match() must be freed.

 app/core/gimppalette-load.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/app/core/gimppalette-load.c b/app/core/gimppalette-load.c
index 2fb59dc..9e70c0a 100644
--- a/app/core/gimppalette-load.c
+++ b/app/core/gimppalette-load.c
@@ -625,7 +625,7 @@ gimp_palette_load_css (GimpContext   *context,
 
               g_free (word);
             }
-
+          g_match_info_free (matches);
           g_free (buf);
         }
     }