(!expr == foo) is not the same as (expr != foo)
git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@3569 c06c8d41-db1a-0410-9941-cceddc491573
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SDLKLUNFGVKDS55DDJZCBAVIB7NL3RRYPTACAY65SCUQKV6APFSAC
if (!s || !lua_isfunction(ls, 2) || !lua_gettop(ls) == 2)
if (!s || !lua_isfunction(ls, 2) || lua_gettop(ls) != 2)