user/nmap: split ncat docs

user/nmap/APKBUILD

 # Maintainer: Dan Theisen <djt@hxx.in>
 pkgname=nmap
 pkgver=7.70
-pkgrel=0
+pkgrel=1
 pkgdesc="A network exploration tool and security/port scanner"
 url="https://nmap.org/"
 arch="all"
@@ -15,6 +15,7 @@ subpackages="
 	$pkgname-nselibs::noarch
 	$pkgname-nping
 	$pkgname-ncat
+	$pkgname-ncat-doc:ncat_doc
 	netcat::noarch"
 source="https://nmap.org/dist/$pkgname-$pkgver.tar.bz2"
 
@@ -76,6 +77,14 @@ ncat() {
 	mv "$pkgdir"/usr/bin/ncat "$subpkgdir"/usr/bin
 }
 
+ncat_doc() {
+        pkgdesc="ncat utility (docs)"
+	install_if="nmap-ncat=$pkgver-r$pkgrel docs"
+	mkdir -p "$subpkgdir"/usr/share/man/man1
+	mv "${pkgdir}-doc"/usr/share/man/man1/ncat.1.gz \
+		"$subpkgdir"/usr/share/man/man1
+}
+
 nping() {
 	pkgdesc="$pkgdesc (nping tool)"
 	mkdir -p "$subpkgdir"/usr/bin