textproc/py-charset: Fix test target
Fix test invocation with pytest 4.x [1], which was failing with:
if len(param.values) != len(argnames): E TypeError: object of type 'MarkDecorator' has no len()
While here, fix out of order MASTER_SITES
[1] https://github.com/chardet/chardet/pull/174
Approved by: portmgr (blanket: ports compliance)
MFH: 2019Q4 (blanket(s): bugfix, ports compliance)