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.

#!/bin/sh

hg init
echo 123 > a
hg add a
hg commit -m "first" -d "1000000 0" a
mkdir sub
echo 321 > sub/b
hg add sub/b
hg commit -m "second" -d "1000000 0" sub/b
cat sub/b
hg co 0
cat sub/b 2>/dev/null || echo "sub/b not present"
ls sub 2>/dev/null || echo "sub not present"

true