#2121 log: parsing command logtest with option -e is not correct

[Canh Truong]

Parsing command logtest with option -e is wrong.
For example: Running command logtest -e 14 2
All test cases in test suite 14 will be executed while we just expect that test case 2 of test suite 14 is executed.

[Srinivas Siva Mangipudy]

commit 8c725cd2d873aebd420e1857ece516ba8d0eab5b
Author: Srinivas vijay.roy@oracle.com
Date: Wed Oct 4 15:35:14 2017 +0530

log: corrected parsing of command logtest with option -e [#2121]

Instead of using strtok to parse the input args,
reading the args using index.