tests/test-status-inprocess.py.out

rebase: add dryrun property to rebaseruntime

I want to be able to check the property in
`rebaseruntime._rebasenode()`. Passing the value via the runtime is a
convenient way.

Differential Revision: https://phab.mercurial-scm.org/D9074

% creating repo
% add and commit
C test.py
% change
M test.py