tests/hghave

--- a/tests/hghave	Mon Nov 21 01:49:20 2011 +0100
+++ b/tests/hghave	Mon Nov 21 01:49:20 2011 +0100
@@ -45,7 +45,7 @@
 
 def has_cvs():
     re = r'Concurrent Versions System.*?server'
-    return matchoutput('cvs --version 2>&1', re)
+    return matchoutput('cvs --version 2>&1', re) and not has_msys()
 
 def has_darcs():
     return matchoutput('darcs --version', r'2\.[2-9]', True)