cros_build_lib: rename RunCommand to run

This aligns with the new subprocess.run API.

RunCommand -> run.
SudoRunCommand -> sudo_run.
DebugRunCommand -> dbg_run.

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

Change-Id: I78ebd4e08176d7874b3d3fe537b6ceb292b0241b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/1818782
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Chris McDonald <cjmcdonald@chromium.org>
diff --git a/api/controller/test.py b/api/controller/test.py
index dc58e6e..2a115d7 100644
--- a/api/controller/test.py
+++ b/api/controller/test.py
@@ -104,7 +104,7 @@
 def ChromiteUnitTest(_input_proto, _output_proto, _config):
   """Run the chromite unit tests."""
   cmd = [os.path.join(constants.CHROMITE_DIR, 'scripts', 'run_tests')]
-  result = cros_build_lib.RunCommand(cmd, error_code_ok=True)
+  result = cros_build_lib.run(cmd, error_code_ok=True)
   if result.returncode == 0:
     return controller.RETURN_CODE_SUCCESS
   else:
@@ -142,7 +142,7 @@
 
   with osutils.TempDir(prefix='vm-test-results.') as results_dir:
     cmd.extend(['--results-dir', results_dir])
-    cros_build_lib.RunCommand(cmd, kill_timeout=10 * 60)
+    cros_build_lib.run(cmd, kill_timeout=10 * 60)
 
 
 @faux.all_empty
@@ -189,6 +189,6 @@
   """Run the cros-signing unit tests."""
   test_runner = os.path.join(constants.SOURCE_ROOT, 'cros-signing', 'signer',
                              'run_tests.py')
-  result = cros_build_lib.RunCommand([test_runner], error_code_ok=True)
+  result = cros_build_lib.run([test_runner], error_code_ok=True)
 
   return result.returncode