changegroup: pass end of manifests marker into constructor...
changegroup: pass end of manifests marker into constructor
cg3 inserts a custom marker in the stream once all manifests
have been transferred. This is currently abstracted out by
overriding a method.
Let's pass the end of manifests marker in as an argument to avoid
the extra method.
Differential Revision:
https://phab.mercurial-scm.org/D4080