Use `peer:random_name/1 to generate peer name

Author: lukebakken

deps/rabbit/src/rabbit_peer_discovery.erl

@@ -356,8 +356,7 @@ check_discovered_nodes_list_validity(DiscoveredNodes, BadNodeType)
 
 query_node_props(Nodes) when Nodes =/= [] ->
     {Prefix, _Suffix} = rabbit_nodes_common:parts(node()),
-    PeerName = lists:flatten(
-                 io_lib:format("~s-peerdisc-~s", [Prefix, os:getpid()])),
+    PeerName = peer:random_name(Prefix),
     %% We go through a temporary hidden node to query all other discovered
     %% peers properties, instead of querying them directly.
     %%