sngrep: update to snapshot 2016-09-27

Update snapshot and change PKG_VERSION layout to be more consistent with base packages.

Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>

net/sngrep/Makefile

@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=sngrep
-PKG_VERSION:=20160923-devel
+PKG_VERSION=2016-09-27-$(PKG_SOURCE_VERSION)
 PKG_RELEASE:=1
 PKG_MAINTAINER:=Daniel Engberg <daniel.engberg.lists@pyret.net>
 PKG_LICENSE:=GPL-3.0
@@ -16,8 +16,8 @@ PKG_LICENSE_FILES:=COPYING
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=https://github.com/irontec/sngrep
-PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
-PKG_SOURCE_VERSION:=1e0ee528d0f400d42ce482518c805a86f9b61cef
+PKG_SOURCE_SUBDIR=$(PKG_NAME)-$(PKG_VERSION)
+PKG_SOURCE_VERSION:=b764ec6722f4f6b4067c469b892af4d988bbeece
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 
 PKG_FIXUP:=autoreconf