git-p4 pull request

The following changes since commit a5e407988b35b7353bd03c770afc647670c25981:
  Jim Meyering (1):
        git-cvsserver: detect/diagnose write failure, etc.

are available in the git repository at:

  git://people.freedesktop.org/~hausmann/git-p4 master

Scott Lamb (2):
      git-p4: use subprocess in p4CmdList
      git-p4: input to "p4 files" by stdin instead of arguments

Simon Hausmann (3):
      git-p4: Cleanup, make listExistingP4Branches a global function for later use.
      git-p4: Fix upstream branch detection for submit/rebase with multiple branches.
      git-p4: Cleanup, used common function for listing imported p4 branches

 contrib/fast-import/git-p4 |  129 ++++++++++++++++++++++++--------------------
 1 files changed, 70 insertions(+), 59 deletions(-)

I have used Scotts changes for two days now and had no problems at all. Based on Alex Riesen's suggestion they are a nice solution around the commandline limits when calling the p4 client.

The other three changes fix a rather ugly bug when importing multiple depot paths through p4 branch mappings where it could happen in the end that changes that were done in git were submitted into the wrong depot paths in perforce itself due to a faulty rebase onto the wrong git branch.

Would be great if those changes could be included in master.

Thanks, Simon