[tasque] [xbuild] Fix silly mistake

[Antonius Riha <antoniusri src gnome org>]

commit 9aa890c960b428c60321b9481e8d724f4ba155e8
Author: Antonius Riha <antoniusriha gmail com>
Date:   Wed Oct 3 20:31:14 2012 +0200

    [xbuild] Fix silly mistake

 build/X.Common.targets |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/build/X.Common.targets b/build/X.Common.targets
index 1ee54ae..3b6439a 100644
--- a/build/X.Common.targets
+++ b/build/X.Common.targets
@@ -16,8 +16,8 @@
       Get src dir strip: The path fragment from TopSrcDir to SrcDir.
       This is the same as the fragment from AbsTopBuildDir to AbsBuildDir.
     -->
-    <GetRelPath FromPath="AbsTopBuildDir" ToPath="AbsBuildDir">
-      <Output TaskParameter="RelativePath" Value="_SrcDirStrip" />
+    <GetRelPath FromPath="$(AbsTopBuildDir)" ToPath="$(AbsBuildDir)">
+      <Output TaskParameter="RelativePath" PropertyName="_SrcDirStrip" />
     </GetRelPath>
     
     <!-- AbsSrcDir -->