Fix typos in WebRequest.checkNotModified docs

Closes gh-1035

Author: kamilszymanski

spring-web/src/main/java/org/springframework/web/context/request/WebRequest.java

@@ -140,7 +140,7 @@ public interface WebRequest extends RequestAttributes {
 	 * and HTTP status when applicable.
 	 * <p>Typical usage:
 	 * <pre class="code">
-	 * public String myHandleMethod(WebRequest webRequest, Model model) {
+	 * public String myHandleMethod(WebRequest request, Model model) {
 	 *   long lastModified = // application-specific calculation
 	 *   if (request.checkNotModified(lastModified)) {
 	 *     // shortcut exit - no further processing necessary
@@ -177,7 +177,7 @@ public interface WebRequest extends RequestAttributes {
 	 * and HTTP status when applicable.
 	 * <p>Typical usage:
 	 * <pre class="code">
-	 * public String myHandleMethod(WebRequest webRequest, Model model) {
+	 * public String myHandleMethod(WebRequest request, Model model) {
 	 *   String eTag = // application-specific calculation
 	 *   if (request.checkNotModified(eTag)) {
 	 *     // shortcut exit - no further processing necessary
@@ -208,7 +208,7 @@ public interface WebRequest extends RequestAttributes {
 	 * response headers, and HTTP status when applicable.
 	 * <p>Typical usage:
 	 * <pre class="code">
-	 * public String myHandleMethod(WebRequest webRequest, Model model) {
+	 * public String myHandleMethod(WebRequest request, Model model) {
 	 *   String eTag = // application-specific calculation
 	 *   long lastModified = // application-specific calculation
 	 *   if (request.checkNotModified(eTag, lastModified)) {

src/docs/asciidoc/web/webmvc.adoc

@@ -4813,7 +4813,7 @@ as the following example shows:
 .Java
 ----
 	@RequestMapping
-	public String myHandleMethod(WebRequest webRequest, Model model) {
+	public String myHandleMethod(WebRequest request, Model model) {
 
 		long eTag = ... // <1>
 
@@ -4833,7 +4833,7 @@ as the following example shows:
 .Kotlin
 ----
 	@RequestMapping
-	fun myHandleMethod(webRequest: WebRequest, model: Model): String? {
+	fun myHandleMethod(request: WebRequest, model: Model): String? {
 
 		val eTag: Long = ... // <1>