python2.5 PyArg_ParseTuple fix
Python 2.5 doesn't like it when we mix str objects and the "t#" format
in PyArg_ParseTuple. Change it to use "s#". Tested with python 2.3, 2.4
and 2.5.
*** failed to import extension badext: invalid syntax (badext.py, line 1)hg help [COMMAND]show help for a command, extension, or list of commands