Merge branch 'mg/rev-list-n-parents'

* mg/rev-list-n-parents:
  tests: avoid nonportable {foo,bar} glob
  rev-list --min-parents,--max-parents: doc, test and completion
  revision.c: introduce --min-parents and --max-parents options
  t6009: use test_commit() from test-lib.sh

diff --cc Documentation/git-rev-list.txt
Simple merge

diff --cc Documentation/rev-list-options.txt
Simple merge

diff --cc builtin/log.c
Simple merge

diff --cc contrib/completion/git-completion.bash
Simple merge

diff --cc revision.c
Simple merge

diff --cc revision.h
Simple merge