Merge branch 'master' of git://git.kernel.org/pub/scm/git/git

Merge branch 'master' of git://git./git/git

* 'master' of git://git.kernel.org/pub/scm/git/git: (182 commits)
  t5550: repack everything into one file
  Catch invalid --depth option passed to clone or fetch
  docs: describe behavior of relative submodule URLs
  fix hang in git fetch if pointed at a 0 length bundle
  Documentation: read-tree --prefix works with existing subtrees
  Add MYMETA.json to perl/.gitignore
  Update draft release notes to 1.7.9
  Git 1.7.8.2
  Fix an incorrect reference to --set-all.
  git-p4: document and test submit options
  git-p4: test and document --use-client-spec
  git-p4: test --keep-path
  git-p4: test --max-changes
  git-p4: document and test --import-local
  git-p4: honor --changesfile option and test
  git-p4: document and test clone --branch
  git-p4: test cloning with two dirs, clarify doc
  git-p4: clone does not use --git-dir
  git-p4: introduce asciidoc documentation
  rename git-p4 tests
  ...