ADMIN: netsnmp: report "HAProxy" and not "Haproxy" in output descriptions

In the SNMP fields descriptions, "Haproxy" was mentioned, let's make it
consistent with the rest.
diff --git a/admin/netsnmp-perl/haproxy_backend.xml b/admin/netsnmp-perl/haproxy_backend.xml
index a5dbe54..26ce63f 100644
--- a/admin/netsnmp-perl/haproxy_backend.xml
+++ b/admin/netsnmp-perl/haproxy_backend.xml
@@ -1,5 +1,5 @@
 <interface>
-	<name>Haproxy - backend</name>
+	<name>HAProxy - backend</name>
 	<oid_index>.1.3.6.1.4.1.29385.106.1.1.10001</oid_index>
 	<fields>
 		<beIID>