[Commits] [wesnoth/wesnoth] 6de1c9: Fix some [modify_ai] isses (addresses GNA25558)

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/wesnoth/wesnoth
  Commit: 6de1c9441f25b9c96a524e2c342e9f82483dd1c2
      https://github.com/wesnoth/wesnoth/commit/6de1c9441f25b9c96a524e2c342e9f82483dd1c2
  Author: Celtic Minstrel <celtic.minstrel.ca at some.place>
  Date:   2017-03-10 (Fri, 10 Mar 2017)

  Changed paths:
    M data/lua/wml-tags.lua
    M src/scripting/game_lua_kernel.cpp

  Log Message:
  -----------
  Fix some [modify_ai] isses (addresses GNA25558)

As far as I can tell, the most likely cause of the bug was that several
cases of [modify_ai]action=add were called with a path that lacked the final
empty braces at the end of the path.

This commit makes both the tag and the underlying Lua API calls explicitly
handle this case as if the final empty braces were, in fact, present.