combined allowable characters into single string, as expected

4 jobs for 158-visually-similar-characters in 3 minutes and 44 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #4939
Go-py3.4

00:01:28

passed #4940
Go-py3.5

00:02:21

passed #4941
Go-py3.6

00:01:33

72.0%
 
  Lint
passed #4942
Go-flake8

00:01:22