main/libpng: upgrade to 1.5.16

main/libpng/APKBUILD

 # Contributor: Carlo Landmeter <clandmeter@gmail.com>
 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=libpng
-pkgver=1.5.15
+pkgver=1.5.16
 pkgrel=0
 pkgdesc="Portable Network Graphics library"
 url="http://www.libpng.org/"
@@ -36,9 +36,9 @@ package() {
 	rm -f "$pkgdir"/usr/lib/*.la
 }
 
-md5sums="ea24254980fd820964a710e4d2a947c7  libpng-1.5.15.tar.gz
-3ae9ea7e4bd201f0b25e25cd6049b094  libpng-1.5.15-apng.patch.gz"
-sha256sums="726224b7a6b5ad0032078bf3fb5a84ffb5ad683a33a62d67f7be5eb5bc37d076  libpng-1.5.15.tar.gz
-e6c46fafd5fbea6250daa07c1b7be2b9571a7cc4c99e985c594666a33de52f6b  libpng-1.5.15-apng.patch.gz"
-sha512sums="3d4f04bc33150177c9ca46543d92884dd3e6857494b99f7cc171fc90371b345495ae777b11bbed88978ec4a00daab632431b3efa78420b0abb659d5cf5690bc7  libpng-1.5.15.tar.gz
-631f4bb60b5e0a09e8fcb794bb240d39beae832a6aca9dab2d382ba2444bb2f7cb5a72dd02976cbe0972371e4a6238aa00b017ac4d8956c5afc0ec8671dcdbd6  libpng-1.5.15-apng.patch.gz"
+md5sums="836cc4673e282cb089018e70c3c4a7fa  libpng-1.5.16.tar.gz
+b64c3f63c23518d6446d60848b2df599  libpng-1.5.16-apng.patch.gz"
+sha256sums="0eade3b039004603a801f9556e06f604bd1e73178104c5f750ea5041694992ff  libpng-1.5.16.tar.gz
+7169d7f91d810f5dd6635e1686aabc9c75b776a6856f17aa7243721086e9705c  libpng-1.5.16-apng.patch.gz"
+sha512sums="0a98c92997a5e0ef8284d2e965b7746c27671d20af21a9cd92a278cc086ec9e080b48c05240cab94fe6881b5a189f91e1449036fa164f645f5a659287bbc9261  libpng-1.5.16.tar.gz
+c13b06e9d69c00006088f62b9959b99eaeac70cbbd38e37082f6b8b0ae7bf8ba0dbcda1f83b92b7eab0a2548fe3e9bd416dedcc87149d5358f87dd063493e19b  libpng-1.5.16-apng.patch.gz"