Fixing lint errors

Author: DavidLocus

fuse_optimizers/include/fuse_optimizers/fixed_lag_smoother.h

@@ -292,7 +292,7 @@ class FixedLagSmoother : public Optimizer
    * @brief Stop the optimizer
    */
   void stop();
-  
+
   /**
    * @brief Thread-safe read-only access to the optimizer start time
    */