hgcommand.vim: requirements & doc self-install more consistent; cosmetics Check for availability of builtin system(). Set 'compatible' while sourcing script. File operation during doc self-install: Escape spaces in ex-commands. Use quotes in system calls. Incremented revision number(s). Size of patch is due to cosmetic cleanups: Removal of spaces at line endings. <SID>Prefix to functions when called.

changeset = '{rev}{tags}{parents}   {node|short}   {date|isodate}   {author|user}\n  {desc|firstline|strip}\n\n'
changeset_quiet = '{rev}:{node|short}\n'
start_tags = '['
tag = '{tag},'
last_tag = '{tag}]'
start_parents = ':'
parent = '{rev},'
last_parent = '{rev}'