[gthumb] fixed whitespace in a Makefile

[Paolo Bacchilega <paobac src gnome org>]

commit e49eb2a59f162378241af2b2de698315cc062247
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Wed Feb 4 11:50:22 2015 +0100

    fixed whitespace in a Makefile

 data/icons/hicolor/16x16/actions/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/data/icons/hicolor/16x16/actions/Makefile.am b/data/icons/hicolor/16x16/actions/Makefile.am
index 699e8c2..9418400 100644
--- a/data/icons/hicolor/16x16/actions/Makefile.am
+++ b/data/icons/hicolor/16x16/actions/Makefile.am
@@ -23,7 +23,7 @@ icons_DATA =                                  \
        filter-symbolic.svg                     \
        format-linear-symbolic.svg              \
        format-logarithmic-symbolic.svg         \
-       histogram-symbolic.svg                  \       
+       histogram-symbolic.svg                  \
        image-adjust-colors-symbolic.svg        \
        image-adjust-contrast-symbolic.svg      \
        image-crop-symbolic.svg                 \