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/bintool.py b/tools/binman/bintool.py
index 068d766..7a0c816 100644
--- a/tools/binman/bintool.py
+++ b/tools/binman/bintool.py
@@ -268,7 +268,7 @@
         all_args = (name,) + args
         env = tools.get_env_with_path()
         tout.Detail(f"bintool: {' '.join(all_args)}")
-        result = command.RunPipe(
+        result = command.run_pipe(
             [all_args], capture=True, capture_stderr=True, env=env,
             raise_on_error=False, binary=binary)
 
diff --git a/tools/binman/elf.py b/tools/binman/elf.py
index d22a0d4..47e0a3f 100644
--- a/tools/binman/elf.py
+++ b/tools/binman/elf.py
@@ -285,7 +285,7 @@
     cc, args = tools.get_target_compile_tool('cc')
     args += ['-static', '-nostdlib', '-Wl,--build-id=none', '-m32', '-T',
             lds_file, '-o', elf_fname, s_file]
-    stdout = command.Output(cc, *args)
+    stdout = command.output(cc, *args)
     shutil.rmtree(outdir)
 
 def DecodeElf(data, location):
diff --git a/tools/binman/elf_test.py b/tools/binman/elf_test.py
index b531062..0f749ee 100644
--- a/tools/binman/elf_test.py
+++ b/tools/binman/elf_test.py
@@ -195,7 +195,7 @@
         elf.MakeElf(elf_fname, expected_text, expected_data)
         objcopy, args = tools.get_target_compile_tool('objcopy')
         args += ['-O', 'binary', elf_fname, bin_fname]
-        stdout = command.Output(objcopy, *args)
+        stdout = command.output(objcopy, *args)
         with open(bin_fname, 'rb') as fd:
             data = fd.read()
         self.assertEqual(expected_text + expected_data, data)
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),