dirstate: eliminate reference cycle from normalize
Bound methods hold a reference to self, so assigning a bound method to
an instance unavoidably creates a cycle. Work around this by choosing
a normalize method at walk time instead. Eliminate default arg while
we're at it.
#!/bin/sh
mkdir t
cd t
hg init
echo "invalid" > .hg/hgrc
hg status 2>&1 |sed -e "s:/.*\(/t/.*\):...\1:"
#issue 1199, escaping
cd ..
hg init "foo%bar"
hg clone "foo%bar" foobar
p=`pwd`
cd foobar
cat .hg/hgrc |sed -e "s:$p:...:"
hg paths |sed -e "s:$p:...:"
hg showconfig |sed -e "s:$p:...:"