error output ch fix

Author: allyhawkins

modules/format-checks.nf

@@ -105,10 +105,10 @@ workflow format_checks {
     check_anndata(anndata_format_ch, anndata_format_reference_file)
 
     // collect all error files and concatenate to print to a formatting errors output file
-    error_input_ch = check_sce.out
+    error_output_ch = check_sce.out
       .mix(check_anndata.out) // mix with the anndata error files
 
-    error_files_ch = error_input_ch
+    error_files_ch = error_output_ch
       .collect{ meta, error_file -> error_file } // collect into a list of just the error files
 
     compile_errors(error_files_ch)