Update vars/sonarScan.groovy

vars/sonarScan.groovy

@@ -8,10 +8,10 @@ def call(String projectKey, Map config = [:]) {
         stage('SonarQube analysis') {
             withCredentials([string(credentialsId: 'sonarqube-token', variable: 'SONAR_TOKEN')]) {
                 sh """
-                    sonar-scanner \
+                    sonar-scanner \\
-                      -Dsonar.host.url=${host} \
+                      -Dsonar.host.url=${host} \\
-                      -Dsonar.projectKey=${projectKey} \
+                      -Dsonar.projectKey=${projectKey} \\
-                      -Dsonar.sources=${sources} \
+                      -Dsonar.sources=${sources} \\
                       -Dsonar.token=\${SONAR_TOKEN}
                 """
             }