add output default bam

modules/gatk4/markduplicatesspark/main.nf

@@ -22,7 +22,7 @@ process GATK4_MARKDUPLICATES_SPARK {
 
     script:
     def args = task.ext.args ?: ''
-    prefix = task.ext.prefix ?: "${meta.id}"
+    prefix = task.ext.prefix ?: "${meta.id}.bam"
     def input_list = bam.collect{"--input $it"}.join(' ')
 
     def avail_mem = 3

tests/modules/gatk4/markduplicatesspark/nextflow.config

@@ -1,5 +1,4 @@
 process {
 
     publishDir = { "${params.outdir}/${task.process.tokenize(':')[-1].tokenize('_')[0].toLowerCase()}" }
-
 }