^^^^^^^^ what he said. Table sugar is fine for bottle conditioning any beer, including stout. No impact on flavor and easy peasy. Boil the sugar in two cups of water and add to your bottling bucket.
Table sugar, corn sugar, malt extract - I have never heard of anyone that can taste the difference. Even maple syrup flavor disappears except for the smallest hint.
Either table (cane) or corn sugar is fine. Which ever one you have on hand. The important thing is to know how much priming sugar you need (use an online calc) and weigh it on a scale.