[Commits] [wesnoth/wesnoth] c3e9e8: Fix shell injection

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/wesnoth/wesnoth
  Commit: c3e9e816e963456b04907bd37161a73437a212a4
      https://github.com/wesnoth/wesnoth/commit/c3e9e816e963456b04907bd37161a73437a212a4
  Author: soliton- <soliton at wesnoth.org>
  Date:   2017-12-03 (Sun, 03 Dec 2017)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Fix shell injection

Also quote some variable expansions that weren't and fix some unnecessary bashism.