Refactor matchpats and walk
Move core match function code to util
Add some comments and whitespace
Simplify options
Use lambdas instead of always and never
#!/bin/sh -x
hg init
echo This is file a1 > a
hg add a
hg commit -t "commit #0" -d "0 0" -u user
touch b
hg add b
rm b
hg commit -A -t"comment #1" -d "0 0" -u user