[12gevmoller_sim] [JeffersonLab/remoll] 3bc7aa: Update .travis.yml

[Wouter Deconinck]

  Branch: refs/heads/bugfix-docker-extract-analysis-products
  Home:   https://gcc01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2FJeffersonLab%2Fremoll&data=02%7C01%7C12gevmoller_sim%40jlab.org%7C1779c14b217e403059f008d6a99d7640%7Cb4d7ee1f4fb34f0690372b5b522042ab%7C1%7C1%7C636882891089021368&sdata=7bF9Wu3UQbnfbKVstwqVBqIUn2NvyS3PScEMIOs%2BnR8%3D&reserved=0
  Commit: 3bc7aa288689cb7b45e6a065c72909f9151735f8
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  Author: Wouter Deconinck <wdeconinck at wm.edu>
  Date:   2019-03-15 (Fri, 15 Mar 2019)

  Changed paths:
    M .travis.yml

  Log Message:
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  Update .travis.yml

Correct docker exec syntax