Update log.h

include/LightGBM/utils/log.h

@@ -85,10 +85,7 @@ private:
 
   // a trick to use static variable in header file. 
   // May be not good, but avoid to use an additional cpp file
-  static LogLevel& GetLevel() {
-    static LogLevel level;
-    return level;
-  };
+  static LogLevel& GetLevel() { static LogLevel level; return level; }
   
 };