CLEANUP: remove my name and address from the copyright banner

First, it's a pain to always have to think about updating this date,
second for a long time I've not been the only developer there, and third,
some users contact me hoping to get help that I can't deliver. It's about
time to redirect them to the main site where all the useful links should
be.
diff --git a/src/haproxy.c b/src/haproxy.c
index 994e39c..0b99a13 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -370,8 +370,7 @@
 
 static void display_version()
 {
-	printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n");
-	printf("Copyright 2000-2018 Willy Tarreau <willy@haproxy.org>\n\n");
+	printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE" - https://haproxy.org/\n");
 }
 
 static void display_build_opts()