ratbagctl: use textwrap.indent instead of inventing the wheel ourselves

tools/ratbagctl.body.py.in

@@ -25,6 +25,7 @@ import evdev
 import subprocess
 import sys
 import argparse
+import textwrap
 from typing import Any, Callable, Dict, List, Optional, Tuple, Union
 
 # This must be on a single line, as we replace it using merge_ratbagd.py while building.
@@ -1543,9 +1544,7 @@ class RatbagParserSwitch(RatbagParser):
 
     def _print_help(self, prefix: str) -> None:
         if self.help and self.group is not None:
-            help_lines = self.help.split("\n")
-            help_indented = "\n  ".join(help_lines)
-            print(" ", help_indented, "\n")
+            print(textwrap.indent(self.help, "  "), "\n")
         for e in self.switch:
             e.print_help(None, f"{prefix}{self.name} ")
         if self.N_access is not None: