fix manpages

chmod.1

@@ -3,7 +3,7 @@
 chmod \- change file mode
 .SH SYNOPSIS
 .B chmod
-.RB [ -Rr ]
+.RB [ \-Rr ]
 .RI mode
 .RI [ file ...]
 .SH DESCRIPTION
@@ -18,7 +18,7 @@ third defines permissions for others in the file's group; and the fourth for all
 other users. Leading zeroes may be omitted.
 .SH OPTIONS
 .TP
-.B -R, -r
+.B \-R, \-r
 change directory mode recursively.
 .SH SEE ALSO
 .IR chmod (2)

chown.1

@@ -3,7 +3,7 @@
 chown \- change file ownership
 .SH SYNOPSIS
 .B chown
-.RB [ -Rr ]
+.RB [ \-Rr ]
 .RI [ owner ][: group ]
 .RI [ file ...]
 .SH DESCRIPTION
@@ -11,7 +11,7 @@ chown \- change file ownership
 changes the user or group ownership for the given files.
 .SH OPTIONS
 .TP
-.B -R, -r
+.B \-R, \-r
 change directory ownership recursively.
 .SH SEE ALSO
 .IR chown (2)

nl.1

@@ -12,7 +12,7 @@ nl \- number lines
 .RI [ file ...]
 .SH DESCRIPTION
 .B nl
-reads each file in sequence and writes it to stdout with non-empty lines
+reads each file in sequence and writes it to stdout with non\-empty lines
 numbered.  If no file is given, nl reads from stdin.
 .SH OPTIONS
 .TP
@@ -33,7 +33,7 @@ a regular expression as defined in
 .IR regex (7).
 .TP
 .B t
-only non-empty lines (default).
+only non\-empty lines (default).
 .RE
 .TP
 .BI \-i " increment"

uname.1

@@ -8,7 +8,7 @@ uname \- print system information
 .B uname
 prints system information.  If no flags are given, uname will print only the
 name of the operating system
-.RB ( -s ).
+.RB ( \-s ).
 .SH OPTIONS
 .TP
 .B \-a
@@ -28,3 +28,5 @@ print the name of the operating system.
 .TP
 .B \-v
 print the operating system's version name.
+.SH SEE ALSO
+.IR uname (2)