Log Message:
p5-Config-Std: update to 0.903.

0.903 Fri Oct 6, 2017
   -  general Kwallitee cleanup
   -  warnings cleanup
   -  limitations noted re sequential tests only and repeated re-reading.

0.902 Thu Oct 5, 2017
    - Fix test for RT 114342  (Literal '{' in RE fatal in 5.25+)