Add a features list to branches.cache to detect caches of old hg versions.
The leading space in the written file makes sure that the feature list never
can match an existing version, even if the first feature can be read as hex.
Additionally old hg versions display the id with --debug, too.
" $Id: CVSAnnotate.vim,v 1.5 2002/10/01 21:34:02 rhiestan Exp $
" Vim syntax file
" Language: CVS annotate output
" Maintainer: Bob Hiestand <bob@hiestandfamily.org>
" Last Change: $Date: 2002/10/01 21:34:02 $
" Remark: Used by the cvscommand plugin. Originally written by Mathieu
" Clabaut
if version < 600
syntax clear
elseif exists("b:current_syntax")
finish
endif
syn match cvsDate /\S\S\S \S\+ \d\+ \d\+:\d\+:\d\+ \d\+ [+-]\?\d\+/ contained
syn match cvsName /^\s*\S\+ / contained nextgroup=cvsVer
syn match cvsVer /\d\+ / contained nextgroup=cvsDate
syn region cvsHead start="^" end=":" contains=cvsVer,cvsName,cvsDate
if !exists("did_cvsannotate_syntax_inits")
let did_cvsannotate_syntax_inits = 1
hi link cvsText String
hi link cvsDate Comment
hi link cvsName Type
hi link cvsVer Statement
endif
let b:current_syntax="CVSAnnotate"