index output fix

tasks/indexBam.wdl

@@ -18,6 +18,6 @@ task indexBam {
     	dataDisk: "cloud_ssd " + disk_size + " /cromwell_root/"
 	}
 	output {
-		File sorted_bam_index = "${sample}_Aligned.sortedByCoord.out.bam.bai"
+		File sorted_bam_index = "${sample}.bam.bai"
 	}
 }