fix multi-line syntax issues

Jenkinsfile

@@ -213,6 +213,8 @@ def cmake_build(Map conf=[:]){
     if (setup_args.contains("gfx94")){
         invocation_tag="gfx94"
     }
+    echo "invocation tag: ${invocation_tag}"
+
     if(check_host() && params.USE_SCCACHE && "${env.CK_SCCACHE}" != "null" && "${invocation_tag}" != "") {
         def redis_pre_setup_cmd = pre_setup_cmd + """
             #!/bin/bash
@@ -263,17 +265,23 @@ def cmake_build(Map conf=[:]){
     echo cmd
     if(check_host() && params.USE_SCCACHE && "${env.CK_SCCACHE}" != "null" && "${invocation_tag}" != "") {
         try {
-            def cmd1 = conf.get("cmd1", """${redis_pre_setup_cmd}""")
+            def cmd1 = conf.get("cmd1", """
+                    ${redis_pre_setup_cmd}
+                """)
             sh cmd1
         }
         catch(Exception err){
             echo "could not connect to redis server: ${err.getMessage()}. using local sccache."
-            def cmd2 = conf.get("cmd2", """${local_pre_setup_cmd}""")
+            def cmd2 = conf.get("cmd2", """
+                    ${local_pre_setup_cmd}
+                """)
             sh cmd2
         }
     }
     else{
-        def cmd3 = conf.get("cmd3",  """${pre_setup_cmd}""")
+        def cmd3 = conf.get("cmd3",  """
+                ${pre_setup_cmd}
+            """)
         sh cmd3
     }
     dir("build"){