To see you all once more.
And they would sing:
You do us proud, Sir!
Of course, when he was not quite well he would alter the words to suit his condition, like this:
I have a dreadful toothache, yet I’m happy
To see you all once more!
Or,
I have a housemaid’s knee, yet I am happy
To see you all once more!
And so forth, for Captain Corcoran never intentionally said anything that was not strictly true.