fix: returned truthy of vim.fn

[kjuq]

In Lua, integer value is always recognized as true. So we should check if a returned value from vim.fn.has("win32") is 1 or not.

[davidmh]

I just ran into the same issue, and the fix works for me.

From the Lua docs: https://www.lua.org/pil/2.2.html

Lua considers both zero and the empty string as true in conditional tests

[willothy]

Yes, all values except nil and false are truthy in Lua. My bad, I forgot has returns an int. Should've caught that before merging.

I should really setup CI and tests. I will make sure to do that before I merge the 1.0 patch.

I will merge this fix shortly, sorry for the delay.

[willothy]

Thanks for the PR! I appreciate it.