Add missing whitespace.

Co-authored-by: Davy Cats <davycats.dc@gmail.com>

umi.wdl

@@ -34,7 +34,9 @@ task BamReadNameToUmiTag {
         Int timeMinutes = 1 + ceil(size([inputBam], "G") * 10)
         String dockerImage = "quay.io/biocontainers/pysam:0.17.0--py39h051187c_0"
     }
+    
     String bamIndexPath = sub(select_first([outputPath]), "\.bam$", ".bai")
+    
     command <<<
         python <<CODE
         import pysam