net-mgmt/nagvis: Update to 1.9.10

Log:
Add License file
Changes: http://www.nagvis.org/downloads/changelog/1.9.10

PR:		231521
Submitted by:	Nathan <ndowens@yahoo.com>
Approved by:	portmgr blanket (unmaintained port)

Index: net-mgmt/nagvis/Makefile
===================================================================
--- net-mgmt/nagvis/Makefile	(revision 480182)
+++ net-mgmt/nagvis/Makefile	(working copy)
@@ -2,8 +2,7 @@
 # $FreeBSD$
 
 PORTNAME=	nagvis
-PORTVERSION=	1.9.9
-PORTREVISION=	1
+PORTVERSION=	1.9.10
 CATEGORIES=	net-mgmt
 MASTER_SITES=	http://www.nagvis.org/share/
 
@@ -11,6 +10,7 @@
 COMMENT=	Visualization addon for Nagios
 
 LICENSE=	GPLv2
+LICENSE_FILE=	${WRKSRC}/COPYING
 
 USES=		gettext php:web
 USE_PHP=	gd gettext mbstring session json pdo pdo_sqlite
Index: net-mgmt/nagvis/distinfo
===================================================================
--- net-mgmt/nagvis/distinfo	(revision 480182)
+++ net-mgmt/nagvis/distinfo	(working copy)
@@ -1,3 +1,3 @@
-TIMESTAMP = 1537154451
-SHA256 (nagvis-1.9.9.tar.gz) = 02b6e682012fb5c9493f3bd9748223b181d20e5aeb10fc603adbb40285de4162
-SIZE (nagvis-1.9.9.tar.gz) = 1791989
+TIMESTAMP = 1537463001
+SHA256 (nagvis-1.9.10.tar.gz) = 23809845bc724e7c328e28d35f0bc1387522ef598b0914c6820632ee297e9f1f
+SIZE (nagvis-1.9.10.tar.gz) = 1791966