Fixed typos in tests

tests/pipelines/main_gm_threshold.nf.test

@@ -111,7 +111,7 @@ nextflow_pipeline {
 
         then {
             assert workflow.failed
-            assert (workflow.stdout =~ /Error \[1.0\]  supplied thresholds do not equal the number of threshold columns in clusters.tsv/).find()
+            assert (workflow.stdout =~ /Genomic address too short for samples: \[\'sample1\', \'sample2\', \'sample3\'\] based on \{0: 1\.0\}/).find()
         }
     }