bug#33364: 26.1.50; Tramp doesn't parse multiple hosts on a single line correctly

[Christian Schwarzgruber]

Hello Everyone!

When, e.g. I put this "Host a b c d" into "~/.ssh/config" Emacs tramp
completion only suggests host "a" instead of host "a", "b", "c" and "d". But
"Host a b c d" is a valid syntax, bash completion offers all four hosts for
instance.

Adding " " to `tramp-host-regexp` doesn't solve the problem as it would result
in a host "a b c d", which is not what I wanted :-.

Thanks!

Christian