Added the 'rdate' command, thanks to Sterling Huxley <sterling@europa.com>.

I added the docs, and made behavior identical to the GNU version.
 -Erik

docs/busybox.sgml

@@ -2488,6 +2488,29 @@
 		</para>
 	</sect1>
 
+	<sect1 id="rdate">
+	    <title>rdate</title>
+
+		<para>
+		Usage: rdate [OPTION] HOST
+		</para>
+
+		<para>
+		Get and possibly set the system date and time from a remote HOST.
+		</para>
+
+		<para>
+		Options:
+		</para>
+
+		<para>
+		<screen>
+			-s      Set the system date and time (default).
+			-p      Print the date and time.
+		</screen>
+		</para>
+	</sect1>
+
 	<sect1 id="reboot">
 	    <title>reboot</title>