package/znc: bump version to 1.6.4

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/znc/znc.hash

@@ -1,2 +1,2 @@
 # Locally calculated
-sha256	631c46de76fe601a41ef7676bc974958e9a302b72b25fc92b4a603a25d89b827	znc-1.6.3.tar.gz
+sha256 431097eb17860bfc980f3e68fdd75f98af4bdeecd793c84835c6cb11c3320d1c  znc-1.6.4.tar.gz

package/znc/znc.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-ZNC_VERSION = 1.6.3
+ZNC_VERSION = 1.6.4
 ZNC_SITE = http://znc.in/releases
 ZNC_LICENSE = Apache-2.0
 ZNC_LICENSE_FILES = LICENSE