[CMake] Tiny FindJNI patch to set JNI_FOUND

[Alexander Neundorf]

On Monday 21 December 2009, Marcel Loose wrote:
> Hi all,
>
> Here's a tiny patch for FindJNI, which also sets JNI_FOUND, as dictated
> by the "CMake Find macros standard".
>

Thanks, committed (slightly modified)

Alex