Fix and improve docs on {*var} pattern

Closes gh-27132

Author: rstoyanchev

spring-web/src/main/java/org/springframework/web/util/pattern/PathPattern.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -64,10 +64,10 @@
  * underneath the {@code /resources/} path, including {@code /resources/image.png}
  * and {@code /resources/css/spring.css}</li>
  * <li><code>/resources/{&#42;path}</code> &mdash; matches all files
- * underneath the {@code /resources/} path and captures their relative path in
- * a variable named "path"; {@code /resources/image.png} will match with
- * "path" &rarr; "/image.png", and {@code /resources/css/spring.css} will match
- * with "path" &rarr; "/css/spring.css"</li>
+ * underneath the {@code /resources/}, as well as {@code /resources}, and captures
+ * their relative path in a variable named "path"; {@code /resources/image.png}
+ * will match with "path" &rarr; "/image.png", and {@code /resources/css/spring.css}
+ * will match with "path" &rarr; "/css/spring.css"</li>
  * <li><code>/resources/{filename:\\w+}.dat</code> will match {@code /resources/spring.dat}
  * and assign the value {@code "spring"} to the {@code filename} variable</li>
  * </ul>

src/docs/asciidoc/web/webflux.adoc

@@ -1448,7 +1448,7 @@ You can map requests by using glob patterns and wildcards:
 
 | `+{*path}+`
 | Matches zero or more path segments until the end of the path and captures it as a variable named "path"
-| `+"/resources/{*file}"+` matches `+"/resources/images/file.png"+` and captures `+file=images/file.png+`
+| `+"/resources/{*file}"+` matches `+"/resources/images/file.png"+` and captures `+file=/images/file.png+`
 
 |===
 
@@ -1517,7 +1517,7 @@ information or with the `-parameters` compiler flag on Java 8.
 
 The syntax `{*varName}` declares a URI variable that matches zero or more remaining path
 segments. For example `/resources/{*path}` matches all files under `/resources/`, and the
-`"path"` variable captures the complete relative path.
+`"path"` variable captures the complete path under `/resources`.
 
 The syntax `{varName:regex}` declares a URI variable with a regular expression that has the
 syntax: `{varName:regex}`. For example, given a URL of `/spring-web-3.0.5.jar`, the following method