The Ut_assert stub function, "CFE_SB_ZeroCopyGetPtr", didn't return the return value of the hooked function,
but return NULL.
Even though this stub, "CFE_SB_ZeroCopyGetPtr", executed the hooked function for this stub, it didn't returned the hooked
function's return value and always returned NULL instead.
test case: Test_CF_AppPipe_HousekeepingCmdPbSuccess
The Ut_assert stub function, "CFE_SB_ZeroCopyGetPtr", didn't return the return value of the hooked function, but return NULL. Even though this stub, "CFE_SB_ZeroCopyGetPtr", executed the hooked function for this stub, it didn't returned the hooked function's return value and always returned NULL instead.