xsecurelock: use http instead of git.

srcpkgs/xsecurelock/template

@@ -10,17 +10,13 @@ short_desc="An X11 screen locker designed with the primary goal of security"
 maintainer="Sean R. Lang <srlang@ncsu.edu>"
 license="Apache-2.0"
 homepage="https://github.com/google/xsecurelock"
+distfiles="https://github.com/google/xsecurelock/archive/v$version.tar.gz"
+checksum=92abf1f80e18e8e3368d529e2e5787abdfe60d1344475764d8f31db9ea4aaf2f
 
 pre_configure() {
 	sh autogen.sh
 }
 
-do_fetch() {
-	local url="git://github.com/google/xsecurelock.git"
-	msg_normal "Fetching source from $url ...\n"
-	git clone --branch v${version} ${url} ${pkgname}-${version}
-}
-
 do_build() {
 	make CC=$CC CFLAGS="$CFLAGS" LDFLAGS="$LDFLAGS" ${makejobs}
 }