removed several redundant null-checks
Maybe the test is failing randomly because svnserve didn't start up in time
diagnosis
Format html like others.
[JENKINS-2556] Detect when a "svn switch" can be used rather than a "svn checkout" in the UpdateUpdater.
Rename function svnCommandToUse to getSvnCommandToUse.
Merge pull request #35 from petdr/jenkins_2556

[FIXED JENKINS-2556] Use "svn switch" rather than a "svn checkout" if applicable
Merge branch 'master' of https://github.com/jenkinsci/subversion-plugin
Add/update Chinese (traditional) translation.