KUDU-2671 mark --enable_per_range_hash_schemas as 'advanced'

Since the functionality for KUDU-2671 is almost there, this patch
removes the 'unsafe' tag from the newly introduced
--enable_per_range_hash_schemas flag which enables support for
range-specific hash schemas.  Now the flag is marked as 'advanced'
instead and also marked as 'runtime' as well.

Change-Id: Iecfebf908745d279bb7a276806c7c96b363ba8db
Reviewed-on: http://gerrit.cloudera.org:8080/18694
Reviewed-by: Attila Bukor <abukor@apache.org>
Tested-by: Alexey Serbin <alexey@apache.org>
1 file changed