[gthumb] adjust contrast: better description of the stretch method

[Paolo Bacchilega <paobac src gnome org>]

commit 429cf8631231ba0aaf7c607958d2d940878aabc6
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Wed Aug 17 19:06:45 2016 +0200

    adjust contrast: better description of the stretch method
    
    [bug #767615]

 .../file_tools/gth-file-tool-adjust-contrast.c     |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/extensions/file_tools/gth-file-tool-adjust-contrast.c 
b/extensions/file_tools/gth-file-tool-adjust-contrast.c
index ffeb655..8f9fbe0 100644
--- a/extensions/file_tools/gth-file-tool-adjust-contrast.c
+++ b/extensions/file_tools/gth-file-tool-adjust-contrast.c
@@ -529,7 +529,7 @@ gth_file_tool_adjust_contrast_get_options (GthFileTool *base)
                                    METHOD_STRETCH_0_5,
                                    get_image_task_for_method (METHOD_STRETCH_0_5),
                                    _("Stretch"),
-                                   _("Stretch the histogram trimming the 0.5%"));
+                                   _("Stretch the histogram after trimming 0.5% from both ends"));
        gth_filter_grid_add_filter (GTH_FILTER_GRID (filter_grid),
                                    METHOD_EQUALIZE_SQUARE_ROOT,
                                    get_image_task_for_method (METHOD_EQUALIZE_SQUARE_ROOT),