Add protocol to list of systemitem class values

diff --git a/docbook/relaxng/src/pool.rnc b/docbook/relaxng/src/pool.rnc
index b4bb42256ac3161d405b1488d65691b2ffb26d77..f71c292e45aa68583bd873cb0a1465280cece0a0 100644 (file)
--- a/docbook/relaxng/src/pool.rnc
+++ b/docbook/relaxng/src/pool.rnc
@@ -5698,6 +5698,7 @@ div {
        | "newsgroup"
        | "osname"
        | "process"
+       | "protocol"
        | "resource"
        | "server"
        | "service"