[file-roller] help: use the correct file name

[Paolo Bacchilega <paobac src gnome org>]

commit 9c63da72cb5d0c3538b8f7a70320965026363001
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Thu Apr 3 12:37:48 2014 +0200

    help: use the correct file name

 help/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/help/Makefile.am b/help/Makefile.am
index 1524a61..294d078 100644
--- a/help/Makefile.am
+++ b/help/Makefile.am
@@ -5,7 +5,7 @@ HELP_ID = file-roller
 
 # List of figures to be included
 HELP_MEDIA = \
-       figures/file-roller_3-12.png \
+       figures/file-roller-3-12.png \
        figures/file-roller-open-recent.png \
        figures/file-roller-icon.png