minor fix for start of utts
minor fix for start of utts

amaas/stanford-ctc,amaas/stanford-ctc,xiamike/stanford-ctc,xiamike/stanford-ctc,amaas/stanford-ctc,xiamike/stanford-ctc,xiamike/stanford-ctc,amaas/stanford-ctc,amaas/stanford-ctc,xiamike/stanford-ctc,amaas/stanford-ctc,xiamike/stanford-ctc