logcmdutil: use new function for getting first line of string
Differential Revision: https://phab.mercurial-scm.org/D12412
docutilsdulwich# Needed by the release note toolingfuzzywuzzykeyringpygit2pygments# Needed by the phabricator testspytest-vcr# Need to list explicitly so dependency gets pulled in when# not running on Windows.pywin32-ctypeswindows-curses