cros_build_lib.run: clean up redirect_std{err,out}->std{err,out} migration

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

Change-Id: I5aa3f8e4c69ce47e1c1c4731800948c22d1ebf1e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/1976270
Reviewed-by: Chris McDonald <cjmcdonald@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
diff --git a/scripts/cros_fuzz_unittest.py b/scripts/cros_fuzz_unittest.py
index 9e83e0a..8dc72ab 100644
--- a/scripts/cros_fuzz_unittest.py
+++ b/scripts/cros_fuzz_unittest.py
@@ -251,7 +251,7 @@
         output_dir_option,
     ]
     self.assertCommandCalled(
-        expected_command, redirect_stderr=True, debug_level=logging.DEBUG)
+        expected_command, stderr=True, debug_level=logging.DEBUG)
 
   def testNoSharedLibraries(self):
     """Tests the right coverage command is used without shared libraries."""
@@ -264,7 +264,7 @@
         instr_profile_option, output_dir_option
     ]
     self.assertCommandCalled(
-        expected_command, redirect_stderr=True, debug_level=logging.DEBUG)
+        expected_command, stderr=True, debug_level=logging.DEBUG)
 
 
 class RunSysrootCommandTest(cros_test_lib.RunCommandTestCase):