[gparted] Fix for loop limit in fat16::sanitize_label()

[Curtis Gedak <gedakc src gnome org>]

commit fbd39b81e372e4caef37fa594983ffb39a2b4bf1
Author: Mike Fleetwood <mike fleetwood googlemail com>
Date:   Fri Dec 16 07:15:06 2016 +0000

    Fix for loop limit in fat16::sanitize_label()
    
    Use the same uppercase_label string to determine the limit of the for
    loop as is actually accessed.

 src/fat16.cc |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/fat16.cc b/src/fat16.cc
index 7b3224d..178f10d 100644
--- a/src/fat16.cc
+++ b/src/fat16.cc
@@ -265,7 +265,7 @@ const Glib::ustring fat16::sanitize_label( const Glib::ustring &label ) const
        // [2] Replicated in Wikikedia: label (command)
        //     https://en.wikipedia.org/wiki/Label_%28command%29
        Glib::ustring prohibited_chars( "*?.,;:/\\|+=<>[]" );
-       for ( unsigned int i = 0 ; i < label.size() ; i ++ )
+       for ( unsigned int i = 0 ; i < uppercase_label.size() ; i ++ )
                if ( prohibited_chars.find( uppercase_label[i] ) == Glib::ustring::npos )
                        new_label.push_back( uppercase_label[i] );