Correct a few typos.
Correct a few typos.

git-svn-id: https://svn.apache.org/repos/asf/jmeter/trunk@1676827 13f79535-47bb-0310-9956-ffa450edef68

Former-commit-id: 67714d0034d26b2f20e82a21862ac82eafc466df
etnetera/jmeter,etnetera/jmeter,etnetera/jmeter,apache/jmeter,apache/jmeter,apache/jmeter,ham1/jmeter,ham1/jmeter,etnetera/jmeter,benbenw/jmeter,benbenw/jmeter,benbenw/jmeter,etnetera/jmeter,apache/jmeter,ham1/jmeter,apache/jmeter,benbenw/jmeter,ham1/jmeter,ham1/jmeter