Docs for lua_remove, lua_replace

[Albert Krewinkel <albert+lua@...>]

The documentation for `lua_remove` and `lua_replace` indicates that both
will never trigger an error. However, their (macro) definitions use
lua_pop, which *can* raise an error in Lua 5.4. Therefore, I believe
that the function indicators should be `[-1, +0, e]` instead of
`[-1, +0, –]`.

Cheers,
Albert

-- 
Albert Krewinkel
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