message: Logging for EnsureJoin
diff: @@ -127,9 +127,11 @@ export class UserSyncroniser {
  }
  public async EnsureJoin(member: GuildMember, roomId: string) {
  + const mxUserId = `@_discord_${member.id}:${this.config.bridge.domain}`;
  + log.info("UserSync", `Ensuring ${mxUserId} is joined to ${roomId}`);
  const state = <IGuildMemberState> {
  id: member.id,
  - mxUserId: `@_discord_${member.id}:${this.config.bridge.domain}`,
  + mxUserId,
  displayName: member.displayName,
  };
  await this.ApplyStateToRoom(state, roomId, member.guild.id);
  