Extend documentation about deprecation of wildcard patterns (#2374)

Author: pvdrz

CHANGELOG.md

@@ -201,7 +201,8 @@
 ## Changed
 
  * Regex inputs are sanitized so alternation (`a|b`) is handled correctly but
-   wildcard patterns (`*`) are now considered invalid.
+   wildcard patterns (`*`) are now considered invalid. The `.*` pattern can be
+   used as a replacement.
  * the `ParseCallbacks`trait does not require to implement `UnwindSafe`.
  * the `Builder::parse_callbacks` method no longer overwrites previously added
    callbacks and composes them in a last-to-first manner.

bindgen/lib.rs

@@ -244,6 +244,10 @@ impl Default for CodegenConfig {
 /// regular expressions as arguments. These regular expressions will be parenthesized and wrapped
 /// in `^` and `$`. So if `<regex>` is passed as argument, the regular expression to be stored will
 /// be `^(<regex>)$`.
+///
+/// Releases of `bindgen` with a version lesser or equal to `0.62.0` used to accept the wildcard
+/// pattern `*` as a valid regular expression. This behavior has been deprecated and the `.*`
+/// pattern must be used instead.
 #[derive(Debug, Default, Clone)]
 pub struct Builder {
     options: BindgenOptions,