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.

# should print nothing
# should print ? b/x
? b/x
# should print A b/x
A b/x
# should forget b/x
forgetting b/x
# should print nothing