cmdutil: fix status tersing on Python 3 Differential Revision: https://phab.mercurial-scm.org/D1183

hghave: fix clang-format check to use bytes regex Fixes hghave on Python 3. Differential Revision: https://phab.mercurial-scm.org/D1182

configitems: make all regular expressions bytes and not native str Fixes many tests on Python 3. Differential Revision: https://phab.mercurial-scm.org/D1181

convert: register missed subversion config items Should fix the build failures on the Solaris builders. Differential Revision: https://phab.mercurial-scm.org/D1180

amend: error out if the note is greater than 255bytes In obsmarker we can't store keys and values of more than 255 bytes in metadata. If we try to do so, ProgrammingError is raised. The note flag to amend stores the note in obsmetadata. If a user will try to store a larger note, he will encounter ProgrammingError which is wrong. We must error out early. Thanks to Yuya for warning about this. Differential Revision: https://phab.mercurial-scm.org/D1179

show: move configitems to core chgserver.py is also checking the config and will get: devel-warn: accessing unregistered config item: 'commands.show.aliasprefix' at: mercurial/chgserver.py:109 if the config is not registered. Differential Revision: https://phab.mercurial-scm.org/D1178

chgserver: do not treat HG as sensitive environ when CHGHG is set When `$CHGHG` is set, `$HG` is ignored by the chg client. Removing it from chg's sensitive environment list would avoid starting up servers unnecessarily when `$CHGHG` is the same while `$HG` is different. Differential Revision: https://phab.mercurial-scm.org/D1177

fsmonitor: declare missing config options These were added in 4aa57627692a. Attempting to run the test harness with fsmonitor enabled spews a whole bunch of devel warnings due to these options not be declared. Differential Revision: https://phab.mercurial-scm.org/D1176