apkbuild-fixer: make remove_pkgname_from_source respect tarball name

- $pkgname-$pkgver.tar.gz::url won't have its $pkgname before ::
 replaced with the expanded variable name

apkbuild-fixer

@@ -75,6 +75,10 @@ remove_pkgname_from_source() {
 	[ -z "$1" ] || [ -z "$2" ] && return 0
 	for l in $2; do
 		sed -i "{$l s|\$pkgname|$pkgname|g }" "$1"
+		# The command above might replace the $pkgname in
+		# '$pkgname-$pkgver.tar.gz::' which should not be
+		# replaced, so re-add it if that is the case
+		sed -r -i "{$l s|$pkgname-\\\$pkgver(.*)::|\$pkgname-\$pkgver\1::|g }" "$1"
 	done
 }