Fix a memory leak when ola_traffic is run in validation mode.
Fix a memory leak when ola_traffic is run in validation mode.

ld3300/ola,nightrune/ola,nightrune/ola,nightrune/ola,nightrune/ola,nightrune/ola,nightrune/ola,ld3300/ola,ld3300/ola,ld3300/ola,ld3300/ola,ld3300/ola,ld3300/ola,nightrune/ola