pwkit/msmt.py: bugfix msmt.isfinite()
pwkit/msmt.py: bugfix msmt.isfinite()

Argh. The only problem was that we were creating this particular function with
a lambda expression that bound to the local variable 'name', which changes as
the function loops. So isfinite() ended up becoming an alias for absolute.
Easy solution is just to stop using the variable.

pkgw/pwkit