alter format

tasks/export.wdl

     String disk_size
 
     command <<<
-		    #mkdir -p /cromwell_root/tmp/cnvkit
-		    cp -r ${sep=" " results} .
-		    #cd /cromwell_root/tmp/cnvkit
-		    # this version app just provides seg
-		    cnvkit.py export seg *.cns -o ${sample_id}.seg
+        #mkdir -p /cromwell_root/tmp/cnvkit
+        cp -r ${sep=" " results} .
+        #cd /cromwell_root/tmp/cnvkit
+        # this version app just provides seg
+        cnvkit.py export seg *.cns -o ${sample_id}.seg
     >>>
    
     runtime { 
-		    docker: docker
-		    cluster: cluster_config
-		    systemDisk: "cloud_ssd 40"
-		    dataDisk: "cloud_ssd " + disk_size + " /cromwell_root/"
+        docker: docker
+        cluster: cluster_config
+        systemDisk: "cloud_ssd 40"
+        dataDisk: "cloud_ssd " + disk_size + " /cromwell_root/"
     }
 
     output {