mod_roster: Don't set version to "not_found"

Don't include a "ver" attribute with roster pushes if no roster version
is available.

diff --git a/src/mod_roster.erl b/src/mod_roster.erl
index 6d0b37bc3fb29ac267f4f8c4aef534352552685e..8d3fde6d1c4572905ff708f83f1f25bb85219b8e 100644 (file)
--- a/src/mod_roster.erl
+++ b/src/mod_roster.erl
@@ -231,7 +231,7 @@ roster_version(LServer, LUser) ->
     case roster_version_on_db(LServer) of
       true ->
          case read_roster_version(LUser, LServer) of
-           error -> <<"not_found">>;
+           error -> undefined;
            {ok, V} -> V
          end;
       false ->