Update manpage.

diceware.1

 .\" Man page generated from reStructuredText.
 .
-.TH DICEWARE 1 "January 2018" "diceware 0.9.4.dev0" "User Commands"
+.TH DICEWARE 1 "February 2018" "diceware 0.9.4.dev0" "User Commands"
 .SH NAME
 diceware \- create passphrases
 .
@@ -150,7 +150,7 @@ the wordlists that come included with \fIdiceware\fP\&. Creates something like:
 .SH COPYRIGHT
 .sp
 diceware \-\- Python implementation
-Copyright (C) 2015\-2017 Uli Fouquet and contributors
+Copyright (C) 2015\-2018 Uli Fouquet and contributors
 .sp
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by