openwebwork/webwork-open-problem-library — pull request #63 by Dick-Lane (2014-02-20 17:11:37+00:00)
Title: Replace  black  with  'black'  to avoid a warning message:

Unquoted string "black" may clash with future reserved word
at line 61 of (eval 6877)

curious: warning if redirected from Q23.pg but not if loaded directly