[PATCH v5 00/14] fix mergetool+rerere+subdir regression

If rerere is enabled, no pathnames are given, and mergetool is run from a subdirectory, mergetool always prints "No files need merging". Fix the bug.

This regression was introduced in 57937f70a09c12ef484c290865dac4066d207c9c (v2.11.0).

Changes since v4:
  * Revert to Junio's original proposal for 14/14.  (Junio:  Please
    feel free to take author credit on 14/4; it's now 100% your code.)
  * Do:
        # rev-parse provides the -- needed for 'set'
        eval "set $(git rev-parse --sq -- "$@")"
    instead of:
        eval "set -- $(git rev-parse --sq -- "$@")"
        shift
    for both 02/14 and 14/14.

Richard Hansen (14):
  .mailmap: Use my personal email address as my canonical
  rev-parse doc: pass "--" to rev-parse in the --prefix example
  t7610: update branch names to match test number
  t7610: Move setup code to the 'setup' test case.
  t7610: use test_when_finished for cleanup tasks
  t7610: don't rely on state from previous test
  t7610: run 'git reset --hard' after each test to clean up
  t7610: delete some now-unnecessary 'git reset --hard' lines
  t7610: always work on a test-specific branch
  t7610: don't assume the checked-out commit
  t7610: spell 'git reset --hard' consistently
  t7610: add test case for rerere+mergetool+subdir bug
  mergetool: take the "-O" out of $orderfile
  mergetool: fix running in subdir when rerere enabled

 .mailmap                        |   2 +
 Documentation/git-rev-parse.txt |   3 +-
 git-mergetool.sh                |  21 ++-
 t/t7610-mergetool.sh            | 281 ++++++++++++++++++++++++----------------
 4 files changed, 187 insertions(+), 120 deletions(-)