Ian Moody <moz-ian@perix.co.uk> [Wed, 23 Oct 2019 22:24:14 +0100] rev 43350
phabricator: use True primitive instead of b'true' for phabupdate actions
Something I'd missed in the creatediff port. This didn't matter before with
the old PHP form style wireformat, but breaks with the new arcanist format.
Differential Revision: https://phab.mercurial-scm.org/D7152