Document new -v (verbose) server switch.

man/mosh-server.1

@@ -21,6 +21,7 @@ mosh-server \- server-side helper for mosh
 .B mosh-server
 new
 [\-s]
+[\-v]
 [\-i IP]
 [\-p port]
 [\-c colors]
@@ -59,6 +60,10 @@ bind to the local interface used for an incoming SSH connection, given
 in the \fBSSH_CONNECTION\fP environment variable (for multihomed
 hosts)
 
+.TP
+.B \-v
+Print some debugging information even after detaching.
+
 .TP
 .B \-i \fIIP\fP
 IP address of the local interface to bind (for multihomed hosts)