FENNEL:  fix ExecStreamHowTo bug spotted by Wael
FENNEL:  fix ExecStreamHowTo bug spotted by Wael

[git-p4: depot-paths = "//open/dt/dev/": change = 2869]

LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb