[libpeas] Plug a memory leak in peas_extension_call_valist()

[Steve Frécinaux <sfre src gnome org>]

commit 9359aa0615150f59ad13d582fa91ffa8003c0b4a
Author: Garrett Regier <alias301 gmail com>
Date:   Wed Dec 15 00:25:57 2010 -0800

    Plug a memory leak in peas_extension_call_valist()
    
    A GI object was not unreffed correctly.

 libpeas/peas-extension.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/libpeas/peas-extension.c b/libpeas/peas-extension.c
index 63accb1..68558d1 100644
--- a/libpeas/peas-extension.c
+++ b/libpeas/peas-extension.c
@@ -240,6 +240,8 @@ peas_extension_call_valist (PeasExtension *exten,
       g_base_info_unref ((GIBaseInfo *) retval_info);
     }
 
+  g_base_info_unref ((GIBaseInfo *) callable_info);
+
   return ret;
 }