cros_build_lib.run: clean up error_code_ok->check migration

BUG=chromium:1006587
TEST=`./run_tests` passes

Change-Id: Ie416c5f7b16314a34a3a53f503469b3cc93fb9e2
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/1965957
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Chris McDonald <cjmcdonald@chromium.org>
diff --git a/scripts/cbuildbot_launch_unittest.py b/scripts/cbuildbot_launch_unittest.py
index d750fb0..52b15bf 100644
--- a/scripts/cbuildbot_launch_unittest.py
+++ b/scripts/cbuildbot_launch_unittest.py
@@ -112,7 +112,7 @@
 
     self.assertCommandCalled(
         expected_cmd, extra_env={'PATH': mock.ANY},
-        cwd='/cbuildbot_buildroot', error_code_ok=True)
+        cwd='/cbuildbot_buildroot', check=False)
 
   def testCbuildbotSimple(self):
     """Ensure we invoke cbuildbot correctly."""
@@ -192,7 +192,7 @@
         ],
         extra_env={'PATH': mock.ANY},
         cwd='/root/repository',
-        error_code_ok=True)
+        check=False)
 
     # Ensure we saved the final state, as expected.
     self.assertEqual(expected_build_state.status,
@@ -291,7 +291,7 @@
         ],
         extra_env={'PATH': mock.ANY},
         cwd='/root/repository',
-        error_code_ok=True)
+        check=False)
 
     # Ensure we write the final build state, as expected.
     final_state = build_summary.BuildSummary(