Fix a PARKING_EXTRUDER comment

Marlin/Configuration.h

  */
 //#define PARKING_EXTRUDER
 #if ENABLED(PARKING_EXTRUDER)
-  #define PARKING_EXTRUDER_SOLENOIDS_INVERT           // If enabled, the solenoid not magnetized with applied voltage
+  #define PARKING_EXTRUDER_SOLENOIDS_INVERT           // If enabled, the solenoid is NOT magnetized with applied voltage
   #define PARKING_EXTRUDER_SOLENOIDS_PINS_ACTIVE LOW  // LOW or HIGH pin signal energizes the coil
   #define PARKING_EXTRUDER_SOLENOIDS_DELAY 250        // Delay (ms) for magnetic field. No delay if 0 or not defined.
   #define PARKING_EXTRUDER_PARKING_X { -78, 184 }     // X positions for parking the extruders

Marlin/src/config/default/Configuration.h

  */
 //#define PARKING_EXTRUDER
 #if ENABLED(PARKING_EXTRUDER)
-  #define PARKING_EXTRUDER_SOLENOIDS_INVERT           // If enabled, the solenoid not magnetized with applied voltage
+  #define PARKING_EXTRUDER_SOLENOIDS_INVERT           // If enabled, the solenoid is NOT magnetized with applied voltage
   #define PARKING_EXTRUDER_SOLENOIDS_PINS_ACTIVE LOW  // LOW or HIGH pin signal energizes the coil
   #define PARKING_EXTRUDER_SOLENOIDS_DELAY 250        // Delay (ms) for magnetic field. No delay if 0 or not defined.
   #define PARKING_EXTRUDER_PARKING_X { -78, 184 }     // X positions for parking the extruders

Marlin/src/config/examples/Sanguinololu/Configuration.h

  */
 //#define PARKING_EXTRUDER
 #if ENABLED(PARKING_EXTRUDER)
-  #define PARKING_EXTRUDER_SOLENOIDS_INVERT           // If enabled, the solenoid not magnetized with applied voltage
+  #define PARKING_EXTRUDER_SOLENOIDS_INVERT           // If enabled, the solenoid is NOT magnetized with applied voltage
   #define PARKING_EXTRUDER_SOLENOIDS_PINS_ACTIVE LOW  // LOW or HIGH pin signal energizes the coil
   #define PARKING_EXTRUDER_SOLENOIDS_DELAY 250        // Delay (ms) for magnetic field. No delay if 0 or not defined.
   #define PARKING_EXTRUDER_PARKING_X { -78, 184 }     // X positions for parking the extruders