[test] fix compilation warning

src/kudu/integration-tests/flex_partitioning-itest.cc:221:32: warning: loop variable 'split' of type 'const vector<int32_t>' (aka 'const vector<int>') creates a copy from type 'const vector<int32_t>' [-Wrange-loop-construct]
    for (const vector<int32_t> split : range_partition.splits) {
                               ^

Change-Id: I16ab253ab99808c2a69b0520a3a6b6253f27f2f8
Reviewed-on: http://gerrit.cloudera.org:8080/16766
Reviewed-by: Grant Henke <granthenke@apache.org>
Tested-by: Grant Henke <granthenke@apache.org>
1 file changed