Fix syntax error and variable name.

RNA_Seq_Cecere/RNA-seq.snakefile

@@ -1614,7 +1614,7 @@ rule test_size_factor:
                         format="pdf",
                         title=params.counts_distrib_plot_title.format(normalizer))
                 except TypeError as e:
-                    if str(e) == in no_data_errs:
+                    if str(e) in NO_DATA_ERRS:
                         warn("\n".join([
                             "Got TypeError:",
                             f"{str(e)}",