Bug 734629 - Use default system binary instead of hard-coded /Developer/Tools. r=glandium

build/package/mac_osx/pkg-dmg

@@ -307,10 +307,10 @@ my(@gCleanup, %gConfig, $gDarwinMajor, $gDryRun, $gVerbosity);
             'cmd_hdiutil'        => 'hdiutil',
             'cmd_mkdir'          => 'mkdir',
             'cmd_mktemp'         => 'mktemp',
-            'cmd_Rez'            => '/Developer/Tools/Rez',
+            'cmd_Rez'            => 'Rez',
             'cmd_rm'             => 'rm',
             'cmd_rsync'          => 'rsync',
-            'cmd_SetFile'        => '/Developer/Tools/SetFile',
+            'cmd_SetFile'        => 'SetFile',
 
             # create_directly indicates whether hdiutil create supports
             # -srcfolder and -srcdevice.  It does on >= 10.3 (Panther).