gitweb: Fix test of highlighting support in t9500
gitweb: Fix test of highlighting support in t9500

The commit 7ce896b (Enable highlight executable path as a
configuration option, 2010-09-21) forgot to update t9500 test.

While at it, describe highlight test better.

Signed-off-by: Jakub Narebski <a6a1517a087f9f64a72f41a0de57ff01fbb0e412@gmail.com>
Signed-off-by: Junio C Hamano <a6723cc3f76163bf7adb636a73ac3b0ceb3e6b9b@pobox.com>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git