Value returned from a function is not checked for errors before being used

Defect 72759 (STATIC_C)
Checker CHECKED_RETURN (subcategory none)
File: /src/mongo/executor/network_interface_impl.cpp
Function mongo::executor::NetworkInterfaceImpl::waitForWorkUntil(mongo::Date_t)
/src/mongo/executor/network_interface_impl.cpp, line: 162
Calling "wait_for" without checking return value (as is done elsewhere 7 out of 13 times).

                _isExecutorRunnableCondition.wait_for(lk, waitTime);