[gparted] Ensure commit_to_os() return code is passed up through commit() method

[Curtis Gedak <gedakc src gnome org>]

commit 51d1c4c552c7020e87b5566973574539168ef712
Author: Curtis Gedak <gedakc gmail com>
Date:   Fri Jan 8 10:59:04 2010 -0700

    Ensure commit_to_os() return code is passed up through commit() method
    
    This problem was discovered while investigating bug #604298

 src/GParted_Core.cc |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/GParted_Core.cc b/src/GParted_Core.cc
index eb9bb1a..7a942de 100644
--- a/src/GParted_Core.cc
+++ b/src/GParted_Core.cc
@@ -2750,7 +2750,7 @@ bool GParted_Core::commit()
 {
 	bool succes = ped_disk_commit_to_dev( lp_disk ) ;
 	
-	commit_to_os( 10 ) ;
+	succes = commit_to_os( 10 ) && succes ;
 
 	return succes ;
 }