libostree: update to 2018.4.

Closes #13699.

Signed-off-by: Enno Boland <gottox@voidlinux.eu>

srcpkgs/libostree/template

@@ -1,6 +1,6 @@
 # Template file for 'libostree'
 pkgname=libostree
-version=2018.3
+version=2018.4
 revision=1
 build_style=gnu-configure
 configure_args="--with-builtin-grub2-mkconfig --with-openssl"
@@ -12,7 +12,7 @@ maintainer="Duncaen <duncaen@voidlinux.eu>"
 license="GPL-2.0-or-later"
 homepage="https://ostree.readthedocs.io/en/latest/"
 distfiles="https://github.com/ostreedev/ostree/releases/download/v${version}/libostree-${version}.tar.xz"
-checksum=e54d0ac024f718cfa77b93d57c91c574bebcb937c88e1e30c3d1127e9360fd4b
+checksum=f5b1e083ed630fd32a263731fe9595ecdd07cfd5cba3e354931f481c4181de1c
 
 libostree-devel_package() {
 	depends="${sourcepkg}>=${version}_${revision} libglib-devel"