[gegl] png-save: change input from string to path param

[Clayton Walker <claytonw src gnome org>]

commit 478d0ec96225b8d2ea63d44f98f4817746178a5d
Author: Clayton Walker <clayton m walker gmail com>
Date:   Sat Oct 19 21:48:40 2013 -0600

    png-save: change input from string to path param

 operations/external/png-save.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/operations/external/png-save.c b/operations/external/png-save.c
index 5c994cf..f62f53d 100644
--- a/operations/external/png-save.c
+++ b/operations/external/png-save.c
@@ -23,7 +23,7 @@
 
 #ifdef GEGL_CHANT_PROPERTIES
 
-gegl_chant_string (path, _("File"), "",
+gegl_chant_file_path (path, _("File"), "",
                    _("Target path and filename, use '-' for stdout."))
 gegl_chant_int    (compression, _("Compression"),
                    1, 9, 1, _("PNG compression level from 1 to 9"))