Fix new tests to be better. In particular, fix webraw test to
specify a date on commit to be less brittle, and fix test-oldcgi to test
fetching a subdirectory of a webdir instance.
adding a
adding b
adding t.h
adding t/x
a
NONEXISTENT: No such file or directory
a
b
t.h
t/x
a: No such file or directory
NONEXISTENT: No such file or directory
b
t.h
t/x
a
NONEXISTENT: No such file in rev ce18e5bc5cd3
a
t/x
b
t.h
% -I/-X with relative path should work
b
t.h
t/x
t/x
t/x