[PATCHv3] git-p4 worktree support

Support for git-p4 worktrees.

Adds test cases for using git from a worktree, and specifying the git directory either with the --git-dir command-line option, or with $ENV{GIT_DIR}.

Luke Diamand (1):
  git-p4: support git worktrees

 git-p4.py                 | 17 +++++++++++++----
 t/t9800-git-p4-basic.sh   | 20 ++++++++++++++++++++
 t/t9806-git-p4-options.sh | 32 ++++++++++++++++++++++++++++++++
 3 files changed, 65 insertions(+), 4 deletions(-)