style: some of the suggestions from flake8
diff --git a/serial/serialposix.py b/serial/serialposix.py
index 8c32bd9..44cadf2 100644
--- a/serial/serialposix.py
+++ b/serial/serialposix.py
@@ -56,7 +56,7 @@
 # for the platform
 plat = sys.platform.lower()
 
-if plat[:5] == 'linux':    # Linux (confirmed)
+if plat[:5] == 'linux':    # Linux (confirmed)  # noqa
     import array
 
     # baudrate ioctls