gitignore: Make "stoken" more specific
gitignore: Make "stoken" more specific

It is not good for "stoken" to match subdirectory names.

Signed-off-by: Kevin Cernekee <3105dbb3dd63fbb4f6371cfb04adc6726f76c56b@gmail.com>

cernekee/stoken,mtmiller/stoken,cernekee/stoken,mtmiller/stoken,cernekee/stoken,mtmiller/stoken,mtmiller/stoken,cernekee/stoken