merge: extract _resolvetrivial() function...
merge: extract _resolvetrivial() function
We would eventually like to move the resolution of modify/delete and
delete/modify conflicts to the resolve phase. However, we don't want
to move the checks for identical content that were added in
902554884335 (merge: before cd/dc prompt, check that changed side
really changed, 2014-12-01). Let's instead move these out to a new
_resolvetrivial() function that processes the actions from
manifestmerge() and replaces any false cd/dc conflicts. The function
will also provide a natural place for us to later add code for
resolving false 'm' conflicts.
