doc: silent man page generation and fix gtk-doc warnings
diff --git a/libkmod/libkmod-module.c b/libkmod/libkmod-module.c
index 8cb8603..f5384a7 100644
--- a/libkmod/libkmod-module.c
+++ b/libkmod/libkmod-module.c
@@ -577,7 +577,7 @@
* @input: list of kmod_module to be filtered with blacklist
* @output: where to save the new list
*
- * Deprecated: Use kmod_module_apply_filter instead.
+ * This function should not be used. Use kmod_module_apply_filter instead.
*
* Given a list @input, this function filter it out with config's blacklist
* and save it in @output.