modif concatenate/main.nf

src/nf_modules/concatenate/main.nf

@@ -19,7 +19,6 @@ process concatenate {
 
     script:
 """
-zcat ${fastq}/*.fastq.gz > merged.fastq
-gzip --quiet merged.fastq
+cat ${fastq}/*.fastq.gz > merged.fastq.gz
 """
 }
\ No newline at end of file