test regions

tasks/Haplotyper.wdl

@@ -15,8 +15,7 @@ task Haplotyper {
 
 	File? regions
 	Int? interval_padding
-
-	String INTERVAL = if ${regions} then "--interval ${regions} --interval_padding ${interval_padding}" else ""
+	String INTERVAL = if regions then "--interval ${regions} --interval_padding ${interval_padding}" else ""
 
 command <<<
 		set -o pipefail