[gnome-klotski] Fix whitespace in Makefile

[Robert Ancell <rancell src gnome org>]

commit 658364ccb2c882bfcfc7872de810a26d60e320a1
Author: Robert Ancell <robert ancell canonical com>
Date:   Tue Oct 15 21:03:09 2013 +1300

    Fix whitespace in Makefile

 src/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index b92ef62..15054d3 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -3,7 +3,7 @@ bin_PROGRAMS = gnome-klotski
 gnome_klotski_SOURCES = \
        config.vapi \
        gnome-klotski.vala \
-        history.vala \
+       history.vala \
        puzzle.vala \
        puzzle-view.vala