Fix methods message with empty placeholder.

smwrappers/explore_mapping_parameters/wrapper.py

@@ -71,7 +71,7 @@ with NamedTemporaryFile() as fastq, NamedTemporaryFile() as rates_record:
 
 if hasattr(snakemake.output, "methods"):
     shell(f"cp {snakemake.input.methods} {snakemake.output.methods}")
-    methods = f"# {snakemake.rule}\nThe first {} {snakemake.params.read_name} reads were mapped on the {snakemake.params.genome_name} using {snakemake.params.aligner} (version ${{{{v}}}}) with options {snakemake.params.settings}."
+    methods = f"# {snakemake.rule}\nThe first 10000 {snakemake.params.read_name} reads were mapped on the {snakemake.params.genome_name} using {snakemake.params.aligner} (version ${{{{v}}}}) with options {snakemake.params.settings}. Among those settings, the one resulting in the highest mapping rate was retained."
     shell(f"""
         v=$({snakemake.params.aligner} --version | head -1 | awk '{{{{print $3}}}}')
         echo "{methods}" >> {snakemake.output.methods}