Fixbug: cluster: cluster_config

tasks/pindel.wdl

 task pindel {
-  
+
   String sample_id
   File bam
   File bam_index
   String fasta
 
   String docker
-  String cluster
+  String cluster_config
   String disk_size
 
   command <<<
 	
   runtime {
     docker: docker
-    cluster: cluster
+    cluster: cluster_config
     systemDisk: "cloud_ssd 40"
     dataDisk: "cloud_ssd " + disk_size + " /cromwell_root/"
   }