A bug in debug mode with using tabs in text

[Mikko Merikivi]

I used Stratagus 2.2.7 which was built with the argument "-DCMAKE_BUILD_TYPE=Debug" and Aleona's Tales AT-R2 with this change to its scripts: In scripts/guichan.lua: I replaced the line
  menu:addLabel(wargus.Name .. " V" .. wargus.Version .. " " .. wargus.Homepage, offx + 320 + 8, offy + 104 + 36*-1)
with one in which I replaced the two space bars inside the double quotes between wargus.Version and wargus.Homepage with a tabulator. The game crashes when it reaches the main menu. This only happens when the debug flags are used when compiling. Oh, and despite the directory's name, Stratagus was unmodified.

[cybermind (iddqd-mail)]

Temporarily fixed it by replacing tabs with 4 spaces. This needs to be fixed in a more generic way.