Rationalise exit codes
Rationalise exit codes

git-svn-id: https://svn.apache.org/repos/asf/jakarta/jmeter/trunk@584561 13f79535-47bb-0310-9956-ffa450edef68

Former-commit-id: 156c6329af1e7f7e907dbf732be642e2d824e7a7
benbenw/jmeter,etnetera/jmeter,ham1/jmeter,etnetera/jmeter,apache/jmeter,apache/jmeter,ham1/jmeter,apache/jmeter,ham1/jmeter,benbenw/jmeter,etnetera/jmeter,etnetera/jmeter,ham1/jmeter,ham1/jmeter,apache/jmeter,benbenw/jmeter,apache/jmeter,etnetera/jmeter,benbenw/jmeter