Merge branch 'bc/maint-diff-hunk-header-fix' into bc/master-diff-hunk-header-fix

Merge branch 'bc/maint-diff-hunk-header-fix' into bc/master-diff-hunk-header-fix

* bc/maint-diff-hunk-header-fix:
  diff.*.xfuncname which uses "extended" regex's for hunk header selection
  diff.c: associate a flag with each pattern and use it for compiling regex
  diff.c: return pattern entry pointer rather than just the hunk header pattern
  Cosmetical command name fix
  Start conforming code to "git subcmd" style part 3
  t9700/test.pl: remove File::Temp requirement
  t9700/test.pl: avoid bareword 'STDERR' in 3-argument open()
  GIT 1.6.0.2
  Fix some manual typos.
  Use compatibility regex library also on FreeBSD
  Use compatibility regex library also on AIX
  Update draft release notes for 1.6.0.2
  Use compatibility regex library for OSX/Darwin
  git-svn: Fixes my() parameter list syntax error in pre-5.8 Perl
  Git.pm: Use File::Temp->tempfile instead of ->new
  t7501: always use test_cmp instead of diff
  Start conforming code to "git subcmd" style part 2
  diff: Help "less" hide ^M from the output
  checkout: do not check out unmerged higher stages randomly

Conflicts:
	Documentation/git.txt
	Documentation/gitattributes.txt
	Makefile
	diff.c
	t/t7201-co.sh