Fix copyright attributions

Add copyright years and original authors to INN::Config,
INN::Utils::Shlock, mailpost and sendinpaths.

backends/sendinpaths.in

@@ -3,8 +3,12 @@
 
 ##  Submit Path header field statistics based on ninpaths.
 ##
-##  A rewrite of the sendinpaths shell script in Perl, based on Mohan Kokal's
-##  initial work.  Improved by Julien Elie.
+##  sendinpaths was originally written by Olaf Titz in shell.  This is a
+##  rewrite in Perl, based on Mohan Kokal's initial work, integrated in 2011
+##  into INN, and improved by Julien Élie.
+##
+##  Various bug fixes, code and documentation improvements since then
+##  in 2011, 2021-2024.
 ##
 ##  Prerequisites:
 ##    ninpaths dump files are in the ${INN::Config::pathlog}/path directory.

doc/pod/sendinpaths.pod

@@ -1,3 +1,5 @@
+=encoding utf-8
+
 =head1 NAME
 
 sendinpaths - Send Usenet Path header field statistics via e-mail
@@ -77,7 +79,9 @@ for two addresses:
 
 =head1 HISTORY
 
-B<sendinpaths> was written by Olaf Titz <olaf@bigred.inka.de>.
+B<sendinpaths> was originally written by Olaf Titz <olaf@bigred.inka.de>
+in shell.  The version shipped with INN is a rewrite in Perl based on Mohan
+Kokal's initial work, and improved by Julien Élie.
 
 =head1 SEE ALSO
 

frontends/mailpost.in

@@ -2,7 +2,12 @@
 # fixscript will replace this line with code to load INN::Config
 
 # mailpost - Yet another mail-to-news filter
-# vixie 14jun92 [original]
+#
+# Originally written by Paul Vixie, and released on June, 14th 1992.
+# Hacked up by James Brister for INN integration in 1998.
+#
+# Various bug fixes, code and documentation improvements
+# in 1992, 1993, 1995, 1998-2004, 2007-2012, 2015, 2017, 2021-2024.
 
 use strict;
 use warnings;
@@ -671,6 +676,8 @@ sub append_newsgroups($$) {
 
 __END__
 
+=encoding utf-8
+
 =head1 NAME
 
 mailpost - Feed an e-mail message into a newsgroup
@@ -878,7 +885,7 @@ The default database files which record previously seen message-IDs.
 =head1 HISTORY
 
 Written by Paul Vixie long ago and then hacked up by James Brister for INN
-integration.  Documentation improved by Julien Elie.
+integration.  Documentation improved by Julien Élie.
 
 =head1 SEE ALSO
 

perl/INN/Config.pm.in

@@ -1,5 +1,11 @@
 ##  Perl module which sets up any and all variables that an
 ##  INN Perl script might need.
+##
+##  Originally written by James Brister in 1996 as innshellvars.pl, and
+##  converted to this INN::Config Perl module by Julien Élie in 2007.
+##
+##  Various bug fixes, code and documentation improvements since then
+##  in 2007-2011, 2013, 2018, 2021, 2022, 2024.
 
 package INN::Config;
 
@@ -210,6 +216,8 @@ if (-x "${pathetc}/innshellvars.pl.local") {
 
 __END__
 
+=encoding utf-8
+
 =head1 NAME
 
 INN::Config - Export all the variables an INN Perl script might need
@@ -283,7 +291,7 @@ module.
 
 F<innshellvars.pl> was written by James Brister <brister@vix.com>
 for InterNetNews in 1996.  It was converted to the INN::Config Perl
-module by Julien Elie in 2007.
+module by Julien Élie in 2007.
 
 =head1 SEE ALSO
 

perl/INN/Utils/Shlock.pm.in

@@ -1,8 +1,12 @@
 #! /usr/bin/perl
 # fixscript will replace this line with code to load INN::Config
-
 ##
 ##  Perl module for wrapping the shlock program shipped with INN.
+##  Originally written by Julien Élie in 2011 from existing code duplicated
+##  and used by several INN programs.
+##
+##  Various bug fixes, code and documentation improvements since then
+##  in 2012, 2021-2024.
 ##
 package INN::Utils::Shlock;
 
@@ -80,6 +84,8 @@ our @EXPORT_OK = qw(lock unlock releaselocks);
 
 __END__
 
+=encoding utf-8
+
 =head1 NAME
 
 INN::Utils::Shlock - Wrapper around the shlock program
@@ -176,7 +182,7 @@ This function returns C<1> on success, C<0> on failure.
 
 =head1 HISTORY
 
-Documentation written by Julien Elie for InterNetNews.
+Documentation and Perl module written by Julien Élie for InterNetNews.
 
 =head1 SEE ALSO