tests/testlib/common.sh

deltas: add a debug-delta-find command to analyse delta search

See command documentation for details.

For some reason, pytype is confused by our usage of None/deltainfo variable, so
I had to quiet it.

mkcommit() {
   name="$1"
   shift
   echo "$name" > "$name"
   hg add "$name"
   hg ci -m "$name" "$@"
}