Document "ROOT." syntax before documenting a generic .

lib/libutil/getfsspecname.3

@@ -1,4 +1,4 @@
-.\"	$NetBSD: getfsspecname.3,v 1.6 2018/10/06 13:09:53 jmcneill Exp $
+.\"	$NetBSD: getfsspecname.3,v 1.7 2018/12/28 18:44:11 alnsn Exp $
 .\"
 .\" Copyright (c) 2012 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -28,7 +28,7 @@
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
 .\"
-.Dd October 6, 2018
+.Dd December 28, 2018
 .Dt GETFSSPECNAME 3
 .Os
 .Sh NAME
@@ -58,16 +58,6 @@ up to len
 .Pp
 If the
 .Fa spec
-argument is not of the form
-.Dq NAME=wedgename ,
-.Fa spec
-is copied
-to
-.Fa buf
-and returned.
-.Pp
-If the
-.Fa spec
 argument starts with
 .Dq ROOT. ,
 a path in the form
@@ -85,6 +75,18 @@ is the characters following
 in the
 .Fa spec
 argument.
+.Pp
+If the
+.Fa spec
+argument is not of the form
+.Dq NAME=wedgename
+and it doesn't start with
+.Dq ROOT. ,
+.Fa spec
+is copied
+to
+.Fa buf
+and returned.
 .Sh RETURN VALUES
 On success the absolute pathname of the underlying wedge device is returned,
 or the original