Use `The .Nm utility'. Introduce options with well known sentence.

svn path=/head/; revision=95079

usr.bin/checknr/checknr.1

@@ -46,8 +46,9 @@
 .Op Fl f
 .Ar file
 .Sh DESCRIPTION
-.Nm Checknr
-checks a list of
+The
+.Nm
+utility checks a list of
 .Xr nroff 1
 or
 .Xr troff 1
@@ -58,8 +59,8 @@ If no files are specified,
 .Nm
 checks the standard input.
 .Pp
-Options:
-.Bl -tag -width Ds
+The following options are available:
+.Bl -tag -width indent
 .It Fl a
 Add additional pairs of macros to the list of known macros.
 This must be followed by groups of six characters, each group defining
@@ -97,8 +98,9 @@ Macros that come in open ... close forms, for example,
 the .TS and .TE macros which must always come in pairs.
 .El
 .Pp
-.Nm Checknr
-is intended for use on documents that are prepared with
+The
+.Nm
+utility is intended for use on documents that are prepared with
 .Nm
 in mind, much the same as
 .Xr lint 1 .
@@ -129,8 +131,9 @@ forms anyway,
 you should think of this as a contribution to your document
 preparation style.
 .Pp
-.Nm Checknr
-knows about the
+The
+.Nm
+utility knows about the
 .Xr ms 7
 and
 .Xr me 7