Update src/uwtools/drivers/schism.py

Co-authored-by: Paul Madden <[email protected]>

src/uwtools/drivers/schism.py

@@ -65,7 +65,7 @@ def provisioned_run_directory(self):
         Run directory provisioned with all required content.
         """
         yield self._taskname("provisioned run directory")
-        yield [self.namelist_file()]
+        yield self.namelist_file()
 
     # Private helper methods