Add help messages to included commands

Author: Harry-Lees

Lib/platform.py

@@ -1469,8 +1469,17 @@ def _parse_args(args: list[str] | None):
 
     parser = argparse.ArgumentParser()
     parser.add_argument("args", nargs="*", choices=["nonaliased", "terse"])
-    parser.add_argument("--terse", action="store_true")
-    parser.add_argument("--nonaliased", dest="aliased", action="store_false")
+    parser.add_argument(
+        "--terse",
+        action="store_true",
+        help="return only the absolute minimum information needed to identify the platform",
+    )
+    parser.add_argument(
+        "--nonaliased",
+        dest="aliased",
+        action="store_false",
+        help="prevent the system/ OS name from being aliased to common marketing names e.g. win32 instead of Windows"
+    )
 
     return parser.parse_args(args)