### SUMMARY

Update validate-modules to report messages using named error codes like `version-added` instead of error numbers like `E305`.

This would match the behavior of other tools we use, such as pylint, which have one named error code per rule. This will also make ignore entries much easier to read.

Doing this before 2.9 is released will avoid potential backwards compatibility issues with ignore entries in collections.

##### ISSUE TYPE

Feature Idea

##### COMPONENT NAME

validate-modules

path=self.object_path,
                        code=340,
                        msg=msg
                    )
                self._validate_argument_spec({'options': doc_suboptions}, spec_suboptions, kwargs, context=context + [arg])
        for arg in args_from_argspec:
            if not str(arg).isidentifier():
                msg = "Argument '%s' in argument_spec" % arg
                if context:
                    msg += " found in %s" % " -> ".join(context)
                msg += " is not a valid python identifier"
                self.reporter.error(
                    path=self.object_path,
                    code=336,
                    msg=msg
                )
        if docs:
            file_common_arguments = set()
            for arg, data in FILE_COMMON_ARGUMENTS.items():
                file_common_arguments.add(arg)
                file_common_arguments.update(data.get('aliases', []))
            args_from_docs = set()
            for arg, data in docs.get('options', {}).items():
                args_from_docs.add(arg)
                args_from_docs.update(data.get('aliases', []))
            args_missing_from_docs = args_from_argspec.difference(args_from_docs)
            docs_missing_from_args = args_from_docs.difference(args_from_argspec | deprecated_args_from_argspec)
            for arg in args_missing_from_docs:
                
                if kwargs.get('add_file_common_args', False) and arg in file_common_arguments: