GAUCAMOLE-195: Fix code style issues to conform to project standards.

extensions/guacamole-auth-http/src/main/java/org/apache/guacamole/auth/http/AuthenticationProviderService.java

@@ -74,10 +74,11 @@ public class AuthenticationProviderService {
         HttpServletRequest request = credentials.getRequest();
         if (request != null) {
             String username = request.getRemoteUser();
-            if(username == null) {
+            if(username == null)
                 username = request.getHeader(confService.getHttpAuthHeader());
-            }
+
             if (username != null) {
+                logger.debug("Authenticating with user {}", username);
                 AuthenticatedUser authenticatedUser = authenticatedUserProvider.get();
                 authenticatedUser.init(username, credentials);
                 return authenticatedUser;