Merge branch 'standard-ifdefs' into ast-matcher

Author: lucic71

docs/src/rules/format.md

@@ -155,8 +155,8 @@ compiled as C++NN or later:
 template <typename T1> T1 *f5(T1 *a0) { return std::launder(a0); }
 ```
 
-Rule names are shared across all the files of a module. Platform `#if`s are
-fine in any file; `#if __cplusplus` is not needed.
+Rule names are shared across all the files of a module. Platform `#if`s are fine
+in any file; `#if __cplusplus` is not needed.
 
 ## The `rules` crate