test-clone: fix directory level
92980a8dfdfe inserted a "cd a" but didn't restore the previous directory.
--- a/tests/test-clone.t Sun Oct 28 05:44:50 2012 -1000
+++ b/tests/test-clone.t Sun Oct 28 14:16:16 2012 +0100
@@ -511,6 +511,7 @@
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg id -i ../i
a7949464abda
+ $ cd "$TESTTMP"
Testing failures: