[Development] Improve download-xorg-7.5 script to work with .tar.gz archives.

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4133 3789f03b-4d11-0410-bbf8-ca57d06f2519

unix/download-xorg-7.5

@@ -74,7 +74,10 @@ def main():
 
     for pkg in packages.keys():
         loc = packages[pkg]
-        fname = pkg + ".tar.bz2"
+        if ".tar.bz2" in loc:
+            fname = pkg + ".tar.bz2"
+        else :
+            fname = pkg + ".tar.gz"
         if not os.path.exists(fname):
             assert 0 == os.spawnvp(os.P_WAIT, "wget", ["-N", "-c", "-O", fname, loc])