Log report function in onos driver does not report error properly needs refactor

FuncIntent as well as other test suites is using the logReport() function in onosdriver, the function is called through out the nodes to report any error exception, warning etc. that is found in karaf.log. The function does count the number of instances of any term in the log file, but it does not print it out the searched term properly with the "d" or detailed option as the function says it would.