package/perl-mailtools: bump version to 2.20

Added license hash.

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/perl-mailtools/perl-mailtools.hash

@@ -1,3 +1,5 @@
 # retrieved by scancpan from http://cpan.metacpan.org/
-md5    a00b9d3c3dec64bd15de8c50f1b73d05 MailTools-2.19.tar.gz
-sha256 c17ed702efea8eab56fe92961c07cd4980cee26ca6f13aff2688dc8af69c5e1a MailTools-2.19.tar.gz
+md5    53e9d35256c3fd7cef0e4a24b15e9512 MailTools-2.20.tar.gz
+sha256 f55606f7a9cc342ee9d5f996e2b6a4c0047e2ee47cd88c3250ecf0d0c5fb3196 MailTools-2.20.tar.gz
+# Locally computed
+sha256 734d5b1bd212de832aea99e94c98d56217ea9519d900a29c0547538f596a9b26  README

package/perl-mailtools/perl-mailtools.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-PERL_MAILTOOLS_VERSION = 2.19
+PERL_MAILTOOLS_VERSION = 2.20
 PERL_MAILTOOLS_SOURCE = MailTools-$(PERL_MAILTOOLS_VERSION).tar.gz
 PERL_MAILTOOLS_SITE = $(BR2_CPAN_MIRROR)/authors/id/M/MA/MARKOV
 PERL_MAILTOOLS_DEPENDENCIES = perl-timedate