If I were You. i would drain the oil and leave the plug out with a can underneath, then i would make sure the coolant was topped off and see if any more water comes out. just to make sure it didn't get in there while you had things apart.
Been there! D6 in my case.
I successfully stopped leaking liner seals with a stiff dose of DIKE stopleak. It was leaking so fast I could watch the level fall in the top of the radiator and water was coming out of a leaking gasket on the front of the engine! I pretty much knew it had to be the liner seals since I had just washed the sediment out of the block.
Pumped a couple gallons of old coolant mixed with a couple bottles of DIKE into the block drain on the side and let it sit overnight. Then drained all the coolant off the bottom of the oil pan before filling the radiator and running it enough to mix all the residual moisture into the oil. Changed the oil while hot and never had a problem for a couple years.
After it sat unused for a year or so, it started getting coolant in the oil again and I was planning to either scrap it or overhaul it when i discovered a rusted out freeze plug in the top of the head. Lucked into that discovery when I had the valve covers off. If I hadn't had them off, i would have mistakenly attributed the leak to the liner seals.