docs: mention long options in man pwdx.1

The commit includes few generic manual clean ups as well.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>

pwdx.1

@@ -1,37 +1,32 @@
-'\" t
-.\" (The preceding line is a note to broken versions of man to tell
-.\" them to pre-process this man page with tbl)
 .\" Man page for pwdx
 .\" Licensed under version 2 of the GNU General Public License.
 .\" Copyright 2004 Nicholas Miell.
 .\" Based on the pmap(1) man page by Albert Cahalan.
 .\"
-.TH PWDX 1 "September 8, 2004" "Linux" "Linux User's Manual"
+.TH PWDX "1" "June 2011" "procps-ng" "User Commands"
 .SH NAME
 pwdx \- report current working directory of a process
-
 .SH SYNOPSIS
-.nf
-pwdx pids...
-pwdx -V
-.fi
-
-.SH DESCRIPTION
-The pwdx command reports the current working directory of a process or
-processes.
-
-.SH "GENERAL OPTIONS"
-.TS
-l l l.
--V	show version	Displays version of program.
-.TE
-
+.B pwdx
+[\fIoptions\fR] \fIpid\fR [...]
+.SH OPTIONS
+.TP
+\fB\-V\fR, \fB\-\-version\fR
+Output version information and exit.
+.TP
+\fB\-h\fR, \fB\-\-help\fR
+Output help screen and exit.
 .SH "SEE ALSO"
-ps(1) pgrep(1)
-
+.BR ps (1),
+.BR pgrep (1)
 .SH STANDARDS
 No standards apply, but pwdx looks an awful lot like a SunOS command.
-
 .SH AUTHOR
-Nicholas Miell <nmiell@gmail.com> wrote pwdx in 2004. Please send bug
-reports to <procps@freelists.org>
+.UR nmiell\@gmail.com
+Nicholas Miell
+.UE
+wrote pwdx in 2004.
+.SH "REPORTING BUGS"
+Please send bug reports to
+.UR procps\@freelists.org
+.UE