fix bug

tasks/bcftools1.wdl

+task bcftools {
+
+	Array[File] vcf
+	String docker
+	String cluster_config
+	String disk_size
+
+	command <<<
+		set -o pipefail
+		set -e
+		mkdir -p /cromwell_root/tmp/bcftools
+		echo $vcf > b
+	>>>
+
+	runtime {
+		docker: docker
+		cluster: cluster_config
+		systemDisk: "cloud_ssd 40"
+		dataDisk: "cloud_ssd " + disk_size + " /cromwell_root/"
+	}
+	
+	output {
+		File b = "b"
+	}
+}

workflow.wdl

-import "./tasks/bcftools.wdl" as bcftools
+import "./tasks/bcftools1.wdl" as bcftools
 
 workflow {{ project_name }} {