[CmakeLists.txt] Fix typo

Change-Id: I5e8da8f49b201daf99c27cc1fc3793f511e81e6c
Reviewed-on: http://gerrit.cloudera.org:8080/21395
Reviewed-by: Attila Bukor <abukor@apache.org>
Reviewed-by: Wang Xixu <1450306854@qq.com>
Tested-by: Attila Bukor <abukor@apache.org>
1 file changed