triggering: add critical flag

recipe_engine/run.py

 # Copyright 2016 The LUCI Authors. All rights reserved.
 # Use of this source code is governed under the Apache License, Version 2.0
 # that can be found in the LICENSE file.
 
 """Entry point for fully-annotated builds.
 
 This script is part of the effort to move all builds to annotator-based
 systems. Any builder configured to use the AnnotatorFactory.BaseFactory()
 found in scripts/master/factory/annotator_factory.py executes a single
 AddAnnotatedScript step. That step (found in annotator_commands.py) calls
@@ skipping 229 matching lines @@
 
     # Find and load the recipe to run.
     try:
       recipe_script = universe.load_recipe(recipe)
       s.write_line('Running recipe with %s' % (properties,))
 
       api = loader.create_recipe_api(recipe_script.LOADED_DEPS,
                                      engine,
                                      recipe_test_api.DisabledTestData())
 
-      s.add_step_text('<br/>running recipe: "%s"' % recipe)
+      s.add_step_text('running recipe: "%s"' % recipe)
     except (loader.LoaderError, ImportError, AssertionError) as e:
-      s.add_step_text('<br/>%s' % '<br/>'.join(str(e).splitlines()))
+      for line in str(e).splitlines():
+        s.add_step_text(line)
       s.set_step_status('EXCEPTION')
       return RecipeResult({
           'status_code': 2,
           'reason': str(e),
       })
 
   # Run the steps emitted by a recipe via the engine, emitting annotations
   # into |stream| along the way.
   return engine.run(recipe_script, api)
 
@@ skipping 223 matching lines @@
         results.append(
           loader._invoke_with_properties(
             run_recipe, properties, recipe_script.PROPERTIES,
             properties.keys()))
       except TypeError as e:
         raise TypeError(
             "Got %r while trying to call recipe %s with properties %r" % (
               e, recipe, properties))
 
     return results