fails:Time#getlocal returns a Time with a UTC offset of the specified number of Rational seconds
fails:Time#getlocal raises ArgumentError if the String argument is not in an ASCII-compatible encoding
fails:Time#getlocal with an argument that responds to #to_r coerces using #to_r
fails(not implemented, jruby/jruby#6161):Time#getlocal raises ArgumentError if the String argument is not of the form (+|-)HH:MM
fails:Time#getlocal raises ArgumentError if String argument and seconds greater than 59
