convert-cvs: update test to pass on Linux

tests/test-convert-cvs.out

@@ -21,14 +21,10 b' updating tags'
 a
 c
 % commit new file revisions
-Checking in a;
 src/a,v  <--  a
 new revision: 1.2; previous revision: 1.1
-done
-Checking in b/c;
-src/b/c,v  <--  c
+src/b/c,v  <--  b/c
 new revision: 1.2; previous revision: 1.1
-done
 % convert again
 destination src-hg is a Mercurial repository
 connecting to cvsrepo