dev-python/polygon: Replace distutils-r1 EXAMPLES use

Package-Manager: Portage-2.3.94, Repoman-2.3.21
Signed-off-by: David Seifert <soap@gentoo.org>

dev-python/polygon/polygon-3.0.7.ebuild

@@ -34,6 +34,10 @@ python_test() {
 }
 
 python_install_all() {
-	use examples && local EXAMPLES=( examples/. )
+	if use examples; then
+		dodoc -r examples
+		docompress -x /usr/share/doc/${PF}/examples
+	fi
+
 	distutils-r1_python_install_all
 }