Formatted python files to follow PEP 8 python code standards.

  - Changed the python files in the openbmc-test-automation
    directory to conform to python code style standards with
    the exception of E402 and E501.
  - Resolves openbmc/openbmc-test-automation#1308

Change-Id: I109995c2d248f5a6bb2c0e3c76a6144c8f3aac2e
Signed-off-by: Joy Onyerikwu <onyekachukwu.joy.onyerikwu@ibm.com>
Signed-off-by: Michael Walsh <micwalsh@us.ibm.com>
diff --git a/bin/validate_plug_ins.py b/bin/validate_plug_ins.py
index 36b1db9..9c0a1fd 100755
--- a/bin/validate_plug_ins.py
+++ b/bin/validate_plug_ins.py
@@ -27,9 +27,9 @@
 # Create parser object.
 parser = argparse.ArgumentParser(
     usage='%(prog)s [OPTIONS] [PLUG_IN_DIR_PATHS]',
-    description="%(prog)s will validate the plug-in packages passed to it." +
-                "  It will also print a list of the absolute plug-in" +
-                " directory paths for use by the calling program.",
+    description="%(prog)s will validate the plug-in packages passed to it."
+                + "  It will also print a list of the absolute plug-in"
+                + " directory paths for use by the calling program.",
     formatter_class=argparse.ArgumentDefaultsHelpFormatter,
     prefix_chars='-+')