Add a patch forgotten in update to 1.10, it fixes build on 9.x

svn path=/head/; revision=409739

net/dpinger/files/patch-dpinger.c

@@ -0,0 +1,20 @@
+--- dpinger.c.orig	2016-02-28 05:29:33 UTC
++++ dpinger.c
+@@ -1018,7 +1018,7 @@ parse_args(
+ 
+         default:
+             usage();
+-            fatal(NULL);
++            exit(EXIT_FAILURE);
+         }
+     }
+ 
+@@ -1026,7 +1026,7 @@ parse_args(
+     if (argc != optind + 1)
+     {
+         usage();
+-        fatal(NULL);
++        exit(EXIT_FAILURE);
+     }
+     dest_arg = argv[optind];
+