Coverage not counted on brace lines

[billdenney]

I think that this is subtly different than #363, but it is related. (Sorry if it is a duplicate.)

When I have a function factory similar to #363 (see https://codecov.io/gh/billdenney/pknca/commit/cef59c91c5ac4ecc39ed5a73b4f784844d0bc1fb#D7-255, specifically lines 255, 258, and 260), the interstitial parts of if blocks are not counted: the closing braces and the else.

I see from #363 that 251 and 261 are not run during testing, so they need a #nocov, and I know that I could add #nocov to lines 255, 258, and 260, but if it's reasonable to have covr detect that those lines are implicitly tested, that seems preferable.

[billdenney]

Thank you!