codemod: use pycompat.isdarwin This is done by: sed -i "s/pycompat\.sysplatform == 'darwin'/pycompat.isdarwin/" **/*.py Plus a manual change to `sslutil.py` which involves indentation change that cannot be done by `sed`. Differential Revision: https://phab.mercurial-scm.org/D1035

ERROR: FIXME: This is a known failure of filelog.size for data starting with \1\n
OK.