fix linting issues

lib/ansible/modules/apt.py

@@ -820,9 +820,9 @@ def install(m, pkgspec, cache, upgrade=False, default_release=None,
             changed = APT_GET_ZERO not in out
 
         data = dict(changed=changed, stdout=out, stderr=err, diff=diff)
-    
+
         check_locked_error(out, err)
-        
+
         if rc:
             status = False
             data = dict(msg="'%s' failed: %s" % (cmd, err), stdout=out, stderr=err, rc=rc)
@@ -1545,5 +1545,6 @@ def check_locked_error(stdout, stderr):
     if ("lock was locked" in stderr or "lock was locked" in stdout):
         raise apt.cache.LockFailedException
 
+
 if __name__ == "__main__":
     main()