Update docstring for clog2 function
Update docstring for clog2 function

cjdrake/pyeda,sschnug/pyeda,pombredanne/pyeda,GtTmy/pyeda,karissa/pyeda,karissa/pyeda,pombredanne/pyeda,GtTmy/pyeda,cjdrake/pyeda,karissa/pyeda,pombredanne/pyeda,sschnug/pyeda,sschnug/pyeda,cjdrake/pyeda,GtTmy/pyeda