[gnome-battery-bench] Fix a missing format string

[Owen Taylor <otaylor src gnome org>]

commit 74d54486c592d9c05ad746d11cb9320f22dc0926
Author: Owen W. Taylor <otaylor fishsoup net>
Date:   Wed Jan 28 22:27:15 2015 -0500

    Fix a missing format string
    
    die() should be called with a format string, not a variable string.

 src/commandline.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/commandline.c b/src/commandline.c
index 7002a30..1558d34 100644
--- a/src/commandline.c
+++ b/src/commandline.c
@@ -163,7 +163,7 @@ play_local(int argc, char **argv)
     GError *error = NULL;
     GbbEventPlayer *player = GBB_EVENT_PLAYER(gbb_evdev_player_new("Gnome Battery Bench Test", &error));
     if (player == NULL)
-        die(error->message);
+        die("%s", error->message);
 
     return do_play(player, argc, argv);
 }