[Commits] [wesnoth/wesnoth] 24e7ae: fix ub report in resize_map_dialog()

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/wesnoth/wesnoth
  Commit: 24e7ae28d80d589e5156910f1ba2df765fc7ca8d
      https://github.com/wesnoth/wesnoth/commit/24e7ae28d80d589e5156910f1ba2df765fc7ca8d
  Author: gfgtdf <daniel.gfgtdf at gmail.com>
  Date:   2016-12-15 (Thu, 15 Dec 2016)

  Changed paths:
    M src/editor/map/context_manager.cpp

  Log Message:
  -----------
  fix ub report in resize_map_dialog()

'-fsanitize=undefined' complained about it.
https://gna.org/bugs/?25080