[gthumb/ext] fixed return value

[Paolo Bacchilega <paobac src gnome org>]

commit f4953d2bf9f85cb4f9567f7887297a5f18206bb6
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Fri Jan 1 18:06:18 2010 +0100

    fixed return value

 gthumb/gth-extensions.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gthumb/gth-extensions.c b/gthumb/gth-extensions.c
index a428d1f..1ab7cb9 100644
--- a/gthumb/gth-extensions.c
+++ b/gthumb/gth-extensions.c
@@ -835,7 +835,7 @@ gth_extension_manager_is_active (GthExtensionManager *manager,
 	if (description != NULL)
 		return gth_extension_description_is_active (description);
 	else
-		return NULL;
+		return FALSE;
 }