Fix cut & paste typo

Author: jfarcand

src/main/java/com/ning/http/client/providers/apache/ApacheAsyncHttpProvider.java

@@ -375,7 +375,7 @@ private HttpMethodBase createMethod(HttpClient client, Request request) throws I
         } else if (config.getUserAgent() != null) {
             method.setRequestHeader("User-Agent", config.getUserAgent());
         } else {
-            method.setRequestHeader("User-Agent", AsyncHttpProviderUtils.constructUserAgent(NettyAsyncHttpProvider.class));
+            method.setRequestHeader("User-Agent", AsyncHttpProviderUtils.constructUserAgent(ApacheAsyncHttpProvider.class));
         }
 
         if (config.isCompressionEnabled()) {

src/main/java/com/ning/http/client/providers/jdk/JDKAsyncHttpProvider.java

@@ -551,7 +551,7 @@ private void configure(URI uri, HttpURLConnection urlConnection, Request request
             } else if (config.getUserAgent() != null) {
                 urlConnection.setRequestProperty("User-Agent", config.getUserAgent());
             } else {
-                urlConnection.setRequestProperty("User-Agent", AsyncHttpProviderUtils.constructUserAgent(NettyAsyncHttpProvider.class));
+                urlConnection.setRequestProperty("User-Agent", AsyncHttpProviderUtils.constructUserAgent(JDKAsyncHttpProvider.class));
             }
 
             if (request.getCookies() != null && !request.getCookies().isEmpty()) {