Fix extension.

workflow/scripts/convert_reads.py

@@ -119,7 +119,7 @@ def convert_mapped_pe(bam, bam_basename, tag_filename, chrm):
     tag_steps = ["zcat -f %s" % (bedpe_filename)]
     tag_steps.extend([r"""awk 'BEGIN{OFS="\t"}{printf "%s\t%s\t%s\tN\t1000\t%s\n%s\t%s\t%s\tN\t1000\t%s\n",$1,$2,$3,$9,$4,$5,$6,$10}'"""])
     if chrm:
-        tag_steps.extend["grep -v 'chrM'"]
+        tag_steps.extend(["grep -v 'chrM'"])
     tag_steps.extend(['gzip -cn'])
     out, err = utils.run_pipe(tag_steps, outfile=tag_filename)
     os.remove(bedpe_filename)