Update submodules: parser (new commits)

parser:
    2c47c6d Shane Mc Cormack <shane@dmdirc.com>
            Fix formatting errors introduced in 6864a35fa2ca95b7dfbb1137a620e6fb33512c07

            Gerrit: http://gerrit.dmdirc.com/2901

Change-Id: If96f75bd267c407c0ebe124ddab2952c59a4f4eb