ssmtp: refresh package makefile

* change maintainer email address
* switch to sha256sum fingerprint
* cosmetics

Signed-off-by: Dirk Brenken <dev@brenken.org>

mail/ssmtp/Makefile

@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2007-2015 OpenWrt.org
+# Copyright (C) 2007-2016 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
@@ -9,13 +9,13 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ssmtp
 PKG_VERSION:=2.64
-PKG_RELEASE:=1
-PKG_MAINTAINER:=Dirk Brenken <dirk@brenken.org>
+PKG_RELEASE:=2
+PKG_MAINTAINER:=Dirk Brenken <dev@brenken.org>
 PKG_LICENSE:=GPL-2.0+
 
 PKG_SOURCE:=$(PKG_NAME)_$(PKG_VERSION).orig.tar.bz2
 PKG_SOURCE_URL:=http://ftp.debian.org/debian/pool/main/s/ssmtp
-PKG_MD5SUM:=65b4e0df4934a6cd08c506cabcbe584f
+PKG_SHA256SUM:=22c37dc90c871e8e052b2cab0ad219d010fa938608cd66b21c8f3c759046fa36
 
 include $(INCLUDE_DIR)/package.mk
 
@@ -30,11 +30,9 @@ define Package/$(PKG_NAME)
 endef
 
 define Package/$(PKG_NAME)/description
-A secure, effective and simple way of getting mail off a system to your
-mail hub. It contains no suid-binaries or other dangerous things - no
-mail spool to poke around in, and no daemons running in the background.
-Mail is simply forwarded to the configured mailhost. Extremely easy
-configuration.
+A secure, effective and simple way of getting mail off a system to your mail hub.
+Mail is simply forwarded to the configured mailhost, no daemons running in the background.
+Extremely easy configuration.
 
 endef