Rename CVSNT "mergepoints" test and make it executable.
- rename test-convert-cvs-builtincvsps-cvsnt-mergepoints
(and related files) to test-convert-cvsnt-mergepoints
- this ensures that the test will be run, but does NOT make
it pass: in particularly, it fails regularly for me due
to the inconsistent behaviour of CVS itself
- expect "Branchpoints:" in debugcvsps output
adding a
adding b
adding c
adding d
adding dir/bar/foo
adding dir/x
adding dir/y
adding e
% inserve
? hg.pid
% clean
C a
C b
C c
C d
C dir/bar/foo
C dir/x
C dir/y
C e
% all
? hg.pid
C a
C b
C c
C d
C dir/bar/foo
C dir/x
C dir/y
C e
% path patterns
M dir/x
? hg.pid
M dir/x
M x