fish_title has extra spaces

[jadenPete]

This is a very simple bug, so I'm not going to provide unnecessary information. The fish_title function displays extra spaces, and it should be changed from:

function fish_title
    echo (status current-command) " " (__fish_pwd)
end

to:

function fish_title
    echo -s (status current-command) " " (__fish_pwd)
end

[zanchey]

This goes all the way back to 2005! I'm wondering if it was intentional, although I think it's fine to remove.

[ridiculousfish]

This is in 3.0.1 as d5d80c0