[gcab] Fix leak

[Marc-Andre Lureau <malureau src gnome org>]

commit 301a6b90855da359b3abfe64cffa066fd937047d
Author: Marc-Andrà Lureau <marcandre lureau gmail com>
Date:   Mon Jan 14 16:17:54 2013 +0100

    Fix leak

 libgcab/gcab-cabinet.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/libgcab/gcab-cabinet.c b/libgcab/gcab-cabinet.c
index cc9a072..12fad3a 100644
--- a/libgcab/gcab-cabinet.c
+++ b/libgcab/gcab-cabinet.c
@@ -205,6 +205,7 @@ gcab_cabinet_write (GCabCabinet *self,
         if (file_callback)
             file_callback (file, callback_data);
 
+        g_clear_object (&in);
         in = G_INPUT_STREAM (g_file_read (file->file, cancellable, error));
         if (*error)
             goto end;