patman: Convert camel case in command.py

Convert this file to snake case and update all files which use it.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/binman/ftest.py b/tools/binman/ftest.py
index 21adf43..f85581c 100644
--- a/tools/binman/ftest.py
+++ b/tools/binman/ftest.py
@@ -282,7 +282,7 @@
             Arguments to pass, as a list of strings
             kwargs: Arguments to pass to Command.RunPipe()
         """
-        result = command.RunPipe([[self._binman_pathname] + list(args)],
+        result = command.run_pipe([[self._binman_pathname] + list(args)],
                 capture=True, capture_stderr=True, raise_on_error=False)
         if result.return_code and kwargs.get('raise_on_error', True):
             raise Exception("Error running '%s': %s" % (' '.join(args),