my $message = <<"EOF";
Usage: $0 [OPTION ...] FILE ...
-Output format selection modifier (affects only ReST output):
-
- -sphinx-version Use the ReST C domain dialect compatible with an
- specific Sphinx Version.
- If not specified, kernel-doc will auto-detect using
- the sphinx-build version found on PATH.
-
Output selection (mutually exclusive):
-export Only output documentation for symbols that have been
exported using EXPORT_SYMBOL() or EXPORT_SYMBOL_GPL()
=back
+=head2 Output format modifiers
+
+=head3 reStructuredText only
+
+=over 8
+
+=item -sphinx-version VERSION
+
+Use the ReST C domain dialect compatible with a specific Sphinx Version.
+
+If not specified, kernel-doc will auto-detect using the sphinx-build version
+found on PATH.
+
+=back
+
=cut