Fix "wrap functions with 2 blank lines" pep8 check

Now gates are requires this pep8 rule as mandatory so until it'll be
fixed merge is blocked.

Change-Id: I5b1ad7ec820911b5e765e184223f786c733836a5

tools/cap.py

@@ -134,5 +134,6 @@ def main():
     for line in cap(requirements, frozen):
         print(line)
 
+
 if __name__ == '__main__':
     main()

tools/check-install.py

@@ -25,5 +25,6 @@ def main():
                 errors += 1
     return 1 if errors else 0
 
+
 if __name__ == '__main__':
     sys.exit(main())