Add section number to .Xr

usr.bin/rs/rs.1

@@ -173,12 +173,12 @@ The
 .Nm
 utility can be used as a filter to convert the stream output
 of certain programs (e.g.,
-.Xr spell ,
-.Xr du ,
-.Xr file ,
-.Xr look ,
-.Xr nm ,
-.Xr who ,
+.Xr spell 1 ,
+.Xr du 1 ,
+.Xr file 1 ,
+.Xr look 1 ,
+.Xr nm 1 ,
+.Xr who 1 ,
 and
 .Xr wc 1 )
 into a convenient ``window'' format, as in

usr.bin/tset/tset.1

@@ -187,7 +187,7 @@ If the
 environment variable ends in ``csh'', the commands are for the
 .Nm csh ,
 otherwise, they are for
-.Xr sh .
+.Xr sh 1 .
 Note, the
 .Nm csh
 commands set and unset the shell variable

usr.bin/ul/ul.1

@@ -69,7 +69,7 @@ The following options are available:
 Underlining is indicated by a separate line containing appropriate
 dashes `\-'; this is useful when you want to look at the underlining
 which is present in an
-.Xr nroff
+.Xr nroff 1
 output stream on a crt-terminal.
 .It Fl t Ar terminal
 Overrides the terminal type specified in the environment with

usr.bin/vgrind/vgrind.1

@@ -83,7 +83,7 @@ ends processing
 .Pp
 These lines are formatted as described above.  The output from this
 filter can be passed to
-.Xr troff
+.Xr troff 1
 for output.  There need be no particular ordering with
 .Xr eqn 1
 or
@@ -159,7 +159,7 @@ specifies a point size to use on output (exactly the same as the argument
 of a .ps)
 .It Fl t
 similar to the same option in
-.Xr troff
+.Xr troff 1
 causing formatted text to go to the standard output
 .It Fl x
 outputs the index file in a ``pretty'' format.
@@ -192,7 +192,8 @@ language descriptions
 .Xr getcap 3 ,
 .Xr vgrindefs 5
 .Sh BUGS
-Vfontedpr assumes that a certain programming style is followed:
+The vfontedpr preprocessor assumes that a certain programming style is
+followed:
 .Pp
 For
 .Tn C