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/compile_build_api_proto.py b/api/compile_build_api_proto.py
index 4b0f875..a1ab3f3 100644
--- a/api/compile_build_api_proto.py
+++ b/api/compile_build_api_proto.py
@@ -51,7 +51,7 @@
 
     cmd.extend(['-ensure-file', ensure_file])
 
-    cros_build_lib.RunCommand(cmd, cwd=constants.CHROMITE_DIR, print_cmd=False)
+    cros_build_lib.run(cmd, cwd=constants.CHROMITE_DIR, print_cmd=False)
 
 
 def _CleanTargetDirectory(directory):
@@ -103,7 +103,7 @@
           targets.append(os.path.join(dirpath, filename))
 
   cmd = [_PROTOC, '--python_out', output, '--proto_path', source] + targets
-  result = cros_build_lib.RunCommand(
+  result = cros_build_lib.run(
       cmd, cwd=source, print_cmd=False, error_code_ok=True)
 
   if result.returncode:
@@ -153,7 +153,7 @@
     pb2 = [os.path.join(dirpath, f) for f in filenames if f.endswith('_pb2.py')]
     if pb2:
       cmd = from_sed + pb2
-      cros_build_lib.RunCommand(cmd, print_cmd=False)
+      cros_build_lib.run(cmd, print_cmd=False)
 
 
 def CompileProto(output=None):