Fix a property name collision in ArcanistHgServerChannel
Summary:
See D2665. Here, channel is the Mercurial wire protocol channel name ("o" = "output", "e" = "error", etc), not the underlying channel from PhutilProxyChannel.
Rename the property so there's no collision.
Test Plan:
$ ../../core/lib/arcanist/scripts/hgdaemon/hgdaemon_client.php . --trace --skip-hello array(3) { [0]=> int(0) [1]=> string(103) "capabilities: getencoding runcommand encoding: UTF-8 pid: 73263e20cf21273d50f1f66cab6e0f7c74f4864e67f0f" [2]=> string(0) "" } Executed in 30647 us.
Reviewers: vrana, chad
Reviewed By: vrana
Differential Revision: https://secure.phabricator.com/D17366