packaging: make the path to Win32 requirements absolute when building WiX
Otherwise this broke automation when not launched from `contrib/packaging`.
Differential Revision: https://phab.mercurial-scm.org/D8068
mkcommit() {
name="$1"
shift
echo "$name" > "$name"
hg add "$name"
hg ci -m "$name" "$@"
}
getid() {
hg log --hidden --template '{node}\n' --rev "$1"
}
cat >> $HGRCPATH <<EOF
[alias]
debugobsolete=debugobsolete -d '0 0'
EOF