Fix spelling error in Jenkinsfile comment
Fix spelling error in Jenkinsfile comment

v1v/git-plugin,MarkEWaite/git-plugin,martinda/git-plugin,v1v/git-plugin,jenkinsci/git-plugin,MarkEWaite/git-plugin,jenkinsci/git-plugin,martinda/git-plugin,MarkEWaite/git-plugin,jenkinsci/git-plugin,martinda/git-plugin,v1v/git-plugin,MarkEWaite/git-plugin,jenkinsci/git-plugin