anchor.diff:  = AUTOREVISION(1) =
   :doctype: manpage
  +:br: {empty} +
   
   == NAME ==
   autorevision - extract current-revision metadata from version-control repositories
  
positive.code: it will be a full refspec.  Under hg the feature that is called
  'branches' is actually a sort of graph coloring (multiple heads can
  have the same branch name) so this variable is filled with the current
  bookmark if it exists, with the current branch name as a fallback.
  Under bzr, this is the nick of the branch you are on.
  
  *VCS_TAG*::
  The name of the most recent tag ancestral to the current commit.
  Empty under Subversion.
  
  *VCS_TICK*::
  A count of commits since most recent tag ancestral to the current
  commit or an alias of *VCS_NUM* if there are no prior tags.
  Empty under Subversion.
  
  *VCS_EXTRA*::
  
negative.code: detector code for this case is somewhat unreliable; you will get the
  hash instead if your configuration doesn't use svn-remote.svn.url.
  
  Nested repositories, particularly repositories of different types,
  _may_ result in incorrect and unintended behavior.
  
  Unpacking a tarball into a repository _will_ result in incorrect and
  unintended behavior.
  
  == AUTHORS ==
  
  dak180 <dak180@users.sf.net>: concept, bash/C/C++/XCode/PHP/ini
  support, git and hg extraction.{br}
  Eric S. Raymond <esr@thyrsus.com>: Python/Perl/lua/m4 support, svn and
  bzr extraction, git-svn support, CLI design, man page.
  