Fix file name argument passed by reference instead of value.

src/Command/ImportStrainCommand.php

@@ -221,7 +221,7 @@ class ImportStrainCommand extends Command
             }
         }
         $blastFilesFolder = $input->getArgument('dir').'/data/BLAST';
-        $blastFilesPath = array_map(function (&$file) use ($blastFilesFolder) {
+        $blastFilesPath = array_map(function ($file) use ($blastFilesFolder) {
             return $file = $blastFilesFolder.'/'.$file;
         }, $blastFilesName);