Hide debug commands in ambiguous command list, unless no normal command matches. This will execute diff if 'hg d' is typed and hide rawcommit on 'hg r'. Based on a patch by TK Soh.

#!/bin/sh

mkdir t
cd t
hg init
echo a > a
hg add a
hg commit -m test -d "0 0"
hg history
hg manifest
hg cat a
hg verify