anchor.diff:  
   *VCS_BRANCH*::
   The name of the branch of the commit graph that was selected when
  -autoversion was run.{br}
  +autoversion was run. +
   Under git, this will normally be the shortname of the current branch
   (the asterisked line in the output of of "git branch") except that
   when the branch doesn't have a shortname it will be a full
  -refspec.{br}
  +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
   symbol is filled with the current bookmark if it exists, with the
  -current branch name as a fallback.{br}
  +current branch name as a fallback. +
   Under Subversion this will normally be either 'trunk' or the basename
   of some branch or tag subdirectory, depending on where *autoversion*
  -was run.{br}
  +was run. +
   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.{br}
  +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.{br}
  +commit or an alias of *VCS_NUM* if there are no prior tags. +
   Empty under Subversion.
   
   *VCS_EXTRA*::
  
positive.code: Set to `1` if the current working directory has been modified and `0`
  if not.  If the output language has native Boolean literals, true will
  mean modified and false unmodified.  The C/C++ output is left as
  numeric so the preprocessor can test it.{br}
  'Untracked files are not ignored; see *`-U`* for details.'
  
  == OPTIONS ==
  
negative.code: = AUTOREVISION(1) =
  :doctype: manpage
  
  == NAME ==
  autorevision - extract current-revision metadata from version-control repositories
  
  == SYNOPSIS ==
  *autorevision* {*-t* <output-type> | *-s* <symbol>} [*-o* <cache-file> [*-f*]] [*-U*] [*-V*]
  
  == DESCRIPTION ==
  Extracts metadata about the head revision from your repository.
  