revlog: suggest other parent when a parent was refused for a delta (issue5481) Without aggressivemergedeltas, ensure that when we decline the closest parent (by revision number), the other parent is examined too.

status: add default of --terse=u to tweakdefaults (BC) This is in line with both Git and Subversion, and strikes me as a more humane behavior. Test output changes are expected once you read test-status.t, and I feel like we've still got adequate coverage on things. Differential Revision: https://phab.mercurial-scm.org/D3628