[xmlunit/xmlunit] 7638c0: trigger Travis CI build

[Stefan B. <no...@gi...>]

  Branch: refs/heads/main
  Home:   https://github.com/xmlunit/xmlunit
  Commit: 7638c0787cfcb73514b80d7d13a63e18d5a654c5
      https://github.com/xmlunit/xmlunit/commit/7638c0787cfcb73514b80d7d13a63e18d5a654c5
  Author: Stefan Bodewig <ste...@fr...>
  Date:   2022-01-25 (Tue, 25 Jan 2022)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  trigger Travis CI build