fix typho in GERRIT_PATCHET_NUMBER

Change-Id: I1986278d215ff1172726a499e86c152694db67ac
diff --git a/test-salt-formulas-pipeline.groovy b/test-salt-formulas-pipeline.groovy
index a3d9673..7238660 100644
--- a/test-salt-formulas-pipeline.groovy
+++ b/test-salt-formulas-pipeline.groovy
@@ -31,7 +31,7 @@
   try{
     stage("stop old tests"){
       if (gerritRef) {
-        def runningTestBuildNums = _getRunningTriggeredTestsBuildNumbers(env["JOB_NAME"], GERRIT_CHANGE_NUMBER, GERRIT_PATCHET_NUMBER)
+        def runningTestBuildNums = _getRunningTriggeredTestsBuildNumbers(env["JOB_NAME"], GERRIT_CHANGE_NUMBER, GERRIT_PATCHSET_NUMBER)
         for(int i=0; i<runningTestBuildNums.size(); i++){
           common.infoMsg("Old test with run number ${runningTestBuildNums[i]} found, stopping")
           Jenkins.instance.getItemByFullName(env["JOB_NAME"]).getBuildByNumber(runningTestBuildNums[i]).finish(hudson.model.Result.ABORTED, new java.io.IOException("Aborting build"));
@@ -88,4 +88,4 @@
 def _getRunningTriggeredTestsBuildNumbers(jobName, gerritChangeNumber, excludePatchsetNumber){
   return gerrit.getGerritTriggeredBuilds(jenkinsUtils.getJobRunningBuilds(jobName), gerritChangeNumber, excludePatchsetNumber)
     .stream().map{it -> it.number}.collect(java.util.stream.Collectors.toList())
-}
\ No newline at end of file
+}