Fix remaining 2.1 branch reference
Fix remaining 2.1 branch reference

git-svn-id: https://svn.apache.org/repos/asf/jakarta/jmeter/branches/rel-2-2@432987 13f79535-47bb-0310-9956-ffa450edef68

Former-commit-id: 4cfad2c6822013613cf31fe0c8fa122136e2db85
apache/jmeter,benbenw/jmeter,ham1/jmeter,apache/jmeter,benbenw/jmeter,ham1/jmeter,ham1/jmeter,etnetera/jmeter,ham1/jmeter,etnetera/jmeter,apache/jmeter,benbenw/jmeter,etnetera/jmeter,benbenw/jmeter,ham1/jmeter,apache/jmeter,apache/jmeter,etnetera/jmeter,etnetera/jmeter