CID 30388: check build_clid length to make sure no overflow during strcpy.

Signed-off-by: Rong Zeng <rongzeng@us.ibm.com>
Merge branch 'tp/cov.op.open' into ibm_next_20_tmp
Merge branch 'tp/cov.pthread_rwlock' into ibm_next_20_tmp
Merge branch 'tp/rong_dev_20_0515' into ibm_next_20_tmp