pep8 fixes for bin/subiquity-tui

bin/subiquity-tui

@@ -47,10 +47,12 @@ checks:
             - /usr/bin/curtin
 '''
 
+
 class ClickAction(argparse.Action):
     def __call__(self, parser, namespace, values, option_string=None):
         namespace.scripts.append("c(" + repr(values) + ")")
 
+
 def parse_options(argv):
     parser = argparse.ArgumentParser(
         description='SUbiquity - Ubiquity for Servers',
@@ -67,9 +69,14 @@ def parse_options(argv):
     parser.add_argument('--uefi', action='store_true',
                         dest='uefi',
                         help='run in uefi support mode')
-    parser.add_argument('--screens', action='append', dest='screens', default=[])
-    parser.add_argument('--script', metavar="SCRIPT", action='append', dest='scripts', default=[], help='Execute SCRIPT in a namespace containing view helpers and "ui"')
-    parser.add_argument('--click', metavar="PAT", action=ClickAction, help='Synthesize a click on a button matching PAT')
+    parser.add_argument('--screens', action='append', dest='screens',
+                        default=[])
+    parser.add_argument('--script', metavar="SCRIPT", action='append',
+                        dest='scripts', default=[],
+                        help=('Execute SCRIPT in a namespace containing view '
+                              'helpers and "ui"'))
+    parser.add_argument('--click', metavar="PAT", action=ClickAction,
+                        help='Synthesize a click on a button matching PAT')
     parser.add_argument('--answers')
     return parser.parse_args(argv)
 
@@ -78,6 +85,7 @@ LOGDIR = "/var/log/installer/"
 
 AUTO_ANSWERS_FILE = "/subiquity_config/answers.yaml"
 
+
 def main():
     opts = parse_options(sys.argv[1:])
     global LOGDIR
@@ -112,5 +120,6 @@ def main():
 
     subiquity_interface.run()
 
+
 if __name__ == '__main__':
     sys.exit(main())