Matt Harbison <matt_harbison@yahoo.com> [Mon, 24 Feb 2020 16:33:10 -0500] rev 44188
tests: stabilize test-amend.t on Windows
If $TESTTMP isn't quoted in this context, it ends up like
`C:Temphgtests.pikkoxchild1test-amend.t-obsstore-off`.
Differential Revision: https://phab.mercurial-scm.org/D8144
py3: fix EOL detection in commandserver.channeledinput
This breaks TortoiseHg's email preview which sends b'\n' while readline
request is issued and the loop never ends. Spotted by Matt Harbison.