abort: removed labels argument from abortmerge()...
abort: removed labels argument from abortmerge()
Labels are used to label the code that belongs to `working copy` and `merge rev`
in case of a conflicted state.
No such labelling is required while aborting merge as conflicted parts
are reverted to normal.
Differential Revision:
https://phab.mercurial-scm.org/D6638