Fixed eol write in pattern_formatter_impl

example/example.cpp

@@ -26,8 +26,17 @@ int main(int, char *[])
 {
     try
     {
+         spdlog::set_async_mode(1024);
         // Console logger with color
         auto console = spd::stdout_color_mt("console");
+        
+        for (int i = 0; i < 2000; i++)
+        {
+            console->info("{} Hello thread pool!", i);
+        }
+        
+        return 0;
+        
         console->info("Welcome to spdlog!");
         console->error("Some error message with arg{}..", 1);
 
@@ -39,6 +48,7 @@ int main(int, char *[])
         console->info("{:<30}", "left aligned");
 
         spd::get("console")->info("loggers can be retrieved from a global registry using the spdlog::get(logger_name) function");
+        return 0;
 
         // Create basic file logger (not rotated)
         auto my_logger = spd::basic_logger_mt("basic_logger", "logs/basic-log.txt");