Make ssh -b completion work on FreeBSD and Solaris.

contrib/ssh

@@ -6,8 +6,10 @@ have ssh &&
 _ssh_bindaddress()
 {
     COMPREPLY=( "${COMPREPLY[@]}" $( compgen -W \
-        "$( PATH="$PATH:/sbin" ifconfig | \
-        sed -ne 's/.*addr:\([^[:space:]]*\).*/\1/p' )" -- "$cur" ) )
+        "$( PATH="$PATH:/sbin" ifconfig -a | \
+        sed -ne 's/.*addr:\([^[:space:]]*\).*/\1/p' \
+            -ne 's/.*inet[[:space:]]\{1,\}\([^[:space:]]*\).*/\1/p' )" \
+        -- "$cur" ) )
 }
 
 _ssh_ciphers()