[PATCH] tests: Use an explicit if/then/else block in test-execute-bit

[Bryan O'Sullivan]

Giorgos Keramidas wrote:

> I'm not sure if all /bin/sh implementations handle correctly
> multiple commands like:
> 
> 	 cmd && true-branch || false-branch

This patch isn't necessary.  That test was intentionally checked in in a 
broken state, because it's exposing a bug that is as yet unfixed.

Thanks,

	<b