-Upgrade from python-pyflakes_1.6.0.bb to python-pyflakes_2.1.1.bb.
-License-Update: Now,it supports all active versions of Python: 2.7 and 3.4 to 3.7.
Signed-off-by: Zang Ruochen <zangrc.fnst@cn.fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>