Minor formatting in queue.cpp

Marlin/src/gcode/queue.cpp

         }
 
         #if DISABLED(EMERGENCY_PARSER)
-          // If command was e-stop process now
+          // Process critical commands early
           if (strcmp(command, "M108") == 0) {
             wait_for_heatup = false;
             #if ENABLED(ULTIPANEL)
             #endif
           }
           if (strcmp(command, "M112") == 0) kill(PSTR(MSG_KILLED));
-          if (strcmp(command, "M410") == 0) { quickstop_stepper(); }
+          if (strcmp(command, "M410") == 0) quickstop_stepper();
         #endif
 
         #if defined(NO_TIMEOUTS) && NO_TIMEOUTS > 0