Polish contribution

See gh-30343

Author: snicoll

spring-web/src/main/java/org/springframework/http/client/reactive/Netty5HeadersAdapter.java

@@ -91,9 +91,8 @@ public void setAll(Map<String, String> values) {
 	@Override
 	public Map<String, String> toSingleValueMap() {
 		Map<String, String> singleValueMap = CollectionUtils.newLinkedHashMap(this.headers.size());
-		this.headers.forEach(entry ->
-				singleValueMap.putIfAbsent(entry.getKey().toString(), entry.getValue().toString())
-		);
+		this.headers.forEach(entry -> singleValueMap.putIfAbsent(
+				entry.getKey().toString(), entry.getValue().toString()));
 		return singleValueMap;
 	}
 

spring-web/src/main/java/org/springframework/http/server/reactive/Netty5HeadersAdapter.java

@@ -89,9 +89,8 @@ public void setAll(Map<String, String> values) {
 	@Override
 	public Map<String, String> toSingleValueMap() {
 		Map<String, String> singleValueMap = CollectionUtils.newLinkedHashMap(this.headers.size());
-		this.headers.forEach(entry ->
-				singleValueMap.putIfAbsent(entry.getKey().toString(), entry.getValue().toString())
-		);
+		this.headers.forEach(entry -> singleValueMap.putIfAbsent(
+				entry.getKey().toString(), entry.getValue().toString()));
 		return singleValueMap;
 	}