Update rules/cutadapt_star.snake

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: agillen

rules/cutadapt_star.snake

@@ -129,7 +129,7 @@ rule cutadapt_paired:
           echo "removing internal seq..."
           cutadapt --discard-untrimmed --info-file {params.info} -o /dev/null -p {params.temp2} -g {params.bc_cut} =(cat {input}) =(cat $(echo {input} | sed 's/_R1/_R2/g'))
           echo "stitching R1 FASTQ back together..."
-          if [ -z {params.bc_length1} ];
+          if [ -z "{params.bc_length1}" ];
           then
             python3 inst/scripts/cut_paste_fastq.py -i {params.info} -o {params.temp}
           else