apkbuild-cpan.in: fix empty directories

by not installing .packlist and perllocal.pod.

The call to find -delete has been removed as
the modifications to build() have covered
almost all cases, so deleting .packlist and
perllocal.pod manually is no longer necessary.

Also, increment template version from 3
to 4 to allow easy identification of
aports that have this change applied.

apkbuild-cpan.in

@@ -35,7 +35,7 @@ my $package_mappings = {
 };
 our $packager = "";
 my $template = <<'EOF';
-# Automatically generated by apkbuild-cpan, template 3
+# Automatically generated by apkbuild-cpan, template 4
 [% authors %]
 pkgname=[% pkgname %]
 #_pkgreal is used by apkbuild-cpan to find modules at MetaCpan
@@ -264,14 +264,15 @@ sub update_functions {
         $build_func = <<'EOF';
 build() {
 	export CFLAGS=$(perl -MConfig -E 'say $Config{ccflags}')
-	perl Build.PL --installdirs=vendor
+	perl Build.PL \
+		--installdirs=vendor \
+		--create_packlist=0
 	./Build
 }
 EOF
         $package_func = <<'EOF';
 package() {
 	./Build install --destdir="$pkgdir"
-	find "$pkgdir" \( -name perllocal.pod -o -name .packlist \) -delete
 }
 EOF
         $check_func = <<'EOF';
@@ -284,14 +285,16 @@ EOF
         $build_func = <<'EOF';
 build() {
 	export CFLAGS=$(perl -MConfig -E 'say $Config{ccflags}')
-	PERL_MM_USE_DEFAULT=1 perl -I. Makefile.PL INSTALLDIRS=vendor
+	PERL_MM_USE_DEFAULT=1 perl -I. Makefile.PL \
+		INSTALLDIRS=vendor \
+		NO_PACKLIST=1 \
+		NO_PERLLOCAL=1
 	make
 }
 EOF
         $package_func = <<'EOF';
 package() {
 	make DESTDIR="$pkgdir" install
-	find "$pkgdir" \( -name perllocal.pod -o -name .packlist \) -delete
 }
 EOF
         $check_func = <<'EOF';