minor fix for syncing groups

SignalServiceKit/src/Messages/OWSMessageHandler.m

@@ -172,6 +172,10 @@ NSString *envelopeAddress(SSKProtoEnvelope *envelope)
         [description appendString:verifiedString];
     } else if (syncMessage.contacts) {
         [description appendString:@"Contacts"];
+    } else if (syncMessage.groups) {
+        [description appendString:@"ClosedGroups"];
+    } else if (syncMessage.openGroups) {
+        [description appendString:@"OpenGroups"];
     } else {
         [description appendString:@"Unknown"];
     }

SignalServiceKit/src/Protos/Generated/SignalService.pb.swift

@@ -4348,6 +4348,7 @@ extension SignalServiceProtos_SyncMessage: SwiftProtobuf.Message, SwiftProtobuf.
     7: .same(proto: "verified"),
     9: .same(proto: "configuration"),
     8: .same(proto: "padding"),
+    100: .same(proto: "openGroups"),
   ]
 
   fileprivate class _StorageClass {