t1400 (update-ref): use test_must_fail

diff --git a/t/Makefile b/t/Makefile
index d9c67f5609bad30d8f5bde2bdf3e7d3fb217894d..c7baefb7eac27fff31e3e78c7862eb2bf73d9068 100644 (file)
--- a/t/Makefile
+++ b/t/Makefile
@@ -29,7 +29,6 @@ pre-clean:
 
 clean:
        $(RM) -r 'trash directory'.* test-results
-       $(RM) t????/cvsroot/CVSROOT/?*
        $(RM) -r valgrind/bin
        $(RM) .prove