[DEL] fauth:  This program does nothing

There's no in-protocol authentication.  All this program does is send an
empty request and wait for an empty response.  The only thing it will do
that fstat won't is to succeed when the root directory is missing on the
server.
[NEW] freemount-client:  Add parse_address()
fping:  Axe unused saw_dash variable
fping:  Print usage errors
fping:  Take server address as argument
fstat:  Take server address as argument
fdir:  Take server address as argument
fls:  Assign the_path later
fls:  Take server address as argument
fcat:  Take server address as argument
Merge branches 'fping', 'fstat', 'fdir', 'fls' and 'fcat' into parse_address
Merge branch 'parse_address'