diff: --ignore-blank-lines was too enthusiastic It was ignoring changes from: ab to: a b

graft: disallow grafting grafted csets in specific situations (issue3091) In particular, we do not allow: - grafting an already grafted cset onto its original branch - grafting already grafted csets with the same origin onto each other

graft: use revs to make tests more readable

graft: preserve original source in subsequent grafts

makedate: wrong timezone offset if DST rules changed this year (issue2511) Python's time module sets timezone and altzone based on UTC offsets of two dates: first and middle day of the current year. This approach doesn't work on a year when DST rules change. For example Russia abandoned winter time this year, so the correct UTC offset should be +4 now, but time.timezone returns 3 hours difference because that's what it was on 01.01.2011. Related python issue: http://bugs.python.org/issue1647654

posix: fix findexe() to check for file type and access

forget: use forward slashes for internal paths forget into a subrepo failed on windows because pathes were joined with \.

check-code: add --nolineno option for hiding line numbers This makes the output more stable when it is used as a whitelist.

merge: give a special message for internal:merge failure (issue3105)

setup: raise when executing with python3 without c2to3 argument