Add missing man page for usps (in /rc/bin)
to fedex(1). Didn't see usps at first.

Not entirely sure usps works, but the URL
it gets is accessible, and see BUGS.

Reference: /n/sources/patch/applied/doc-man-1-fedex-usps
Date: Sat Dec  1 13:03:12 CET 2007
Signed-off-by: josh@utopian.net

--- /sys/man/1/fedex	Sat Dec  1 13:03:00 2007
+++ /sys/man/1/fedex	Sat Dec  1 13:02:58 2007
@@ -1,21 +1,31 @@
 .TH FEDEX 1
 .SH NAME
-fedex, ups \- track shipments
+fedex, ups, usps \- track shipments
 .SH SYNOPSIS
 .B fedex 
 .I tracking-number
 .br
 .B ups 
 .I tracking-number
+.br
+.B usps 
+.I tracking-number
 .SH DESCRIPTION
 .I Fedex
 writes available shipment details for the given 12-digit
 .I tracking-number
 on the standard output.
 .I Ups
-is similar, but takes 18-digit
-.IR tracking-number s.
+is similar, but takes an 18-digit
+.IR tracking-number .
+.I Usps
+is again similar, but takes a 20-digit
+.IR tracking-number .
 .SH SOURCE
-.B /rc/bin
+.B /rc/bin/fedex
+.br
+.B /rc/bin/ups
+.br
+.B /rc/bin/usps
 .SH BUGS
 Redesigns of the source website can break these programs.