[gimp] Add missing NULL to g_strconcat() call

[Tor Lillqvist <tml src gnome org>]

commit cb4c374edd01f8f5a5613b21ecedb5a81253243a
Author: Tor Lillqvist <tml iki fi>
Date:   Wed Oct 7 22:31:55 2009 +0300

    Add missing NULL to g_strconcat() call

 tools/gimptool.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/tools/gimptool.c b/tools/gimptool.c
index b6ce242..fb17381 100644
--- a/tools/gimptool.c
+++ b/tools/gimptool.c
@@ -631,7 +631,7 @@ maybe_append_exe (const gchar *what)
   gchar *p = strrchr (what, '.');
 
   if (p == NULL || g_ascii_strcasecmp (p, ".exe") != 0)
-    return g_strconcat (what, ".exe");
+    return g_strconcat (what, ".exe", NULL);
 #endif
 
   return what;