[PATCH] CMake: Use LLVM_VERSION_SUFFIX instead of hardcoded "svn" string

[dileks]

Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com>

[Chris_Bieneman]

LGTM.

-Chris

[rnk]

I meant to come back here and say I applied the patch in r230773. Thanks!