Clarify that HTTP PUT requests are meant.
Clarify that HTTP PUT requests are meant.

git-svn-id: https://svn.apache.org/repos/asf/jmeter/trunk@1785465 13f79535-47bb-0310-9956-ffa450edef68

Former-commit-id: ad779fb0e359adb0500d6e4a13ab55ebd661f249
benbenw/jmeter,apache/jmeter,etnetera/jmeter,benbenw/jmeter,etnetera/jmeter,benbenw/jmeter,etnetera/jmeter,ham1/jmeter,ham1/jmeter,etnetera/jmeter,apache/jmeter,apache/jmeter,etnetera/jmeter,apache/jmeter,ham1/jmeter,benbenw/jmeter,ham1/jmeter,ham1/jmeter,apache/jmeter