be.OK

[earthboundkid]

f := be.OK(os.Open("foo"))(t)
defer f.Close()

Can't pass through os.Open's results and take a testing.T, and if the testing.T is first, you can't infer the os.File, so it's backwards, but it does work and is the majority case.

See #9

[earthboundkid]

defer be.OkayCheck(t)
f := be.Okay(os.Open("foo"))

and OkayCheck turns a panic into a failure?

IDK, wouldn't work with Relaxed.