Shell tests for equality use only one equals sign.
Shell tests for equality use only one equals sign.

Followup to r1813548.
Bugzilla Id: 61667


git-svn-id: https://svn.apache.org/repos/asf/jmeter/trunk@1814311 13f79535-47bb-0310-9956-ffa450edef68

Former-commit-id: ae088f771f54619e0a70ea05dcc1fe999f54ba2a
ham1/jmeter,apache/jmeter,apache/jmeter,etnetera/jmeter,ham1/jmeter,apache/jmeter,ham1/jmeter,benbenw/jmeter,etnetera/jmeter,ham1/jmeter,benbenw/jmeter,apache/jmeter,etnetera/jmeter,etnetera/jmeter,etnetera/jmeter,benbenw/jmeter,benbenw/jmeter,apache/jmeter,ham1/jmeter