tools/__init__.py: Add param info to issue_deprecation_warning.__doc__
tools/__init__.py: Add param info to issue_deprecation_warning.__doc__

Change-Id: Ib302125e8da2d689ebddfdff2890f18d3b321cd3

PersianWikipedia/pywikibot-core,wikimedia/pywikibot-core,wikimedia/pywikibot-core