record: update help message to use operation instead of "record" (issue5432) Update the hunk selector help message to use the operation name instead of using "record" for all operations. Extract the help message in the same way as other single and multiple message line. Update tests to make sure that both "revert" and "discard" variants are tested.

tests: add lots of regex matching to test-http-bad-server.t This makes the test pass in Python 2.6. It's all one of two problems: 1) abort: error: '' (2.7) vs abort: error: (2.6) 2) 65537 (2.7) vs -1 (2.6) With some...unfortunate escaping required due to how regular expressions work. Sigh.

tests: pass only one file at a time to tail(1) It looks like the verison on Solaris only tails one file at a time.