Comment, spacing cleanup

Marlin/src/HAL/STM32/eeprom_flash.cpp

       // This must be the first time since power on that we have accessed the storage, or someone
       // loaded and called write_data and never called access_finish.
       // Lets go looking for the slot that holds our configuration.
-      if (eeprom_data_written) DEBUG_ECHOLN("Dangling EEPROM write_data");
+      if (eeprom_data_written) DEBUG_ECHOLNPGM("Dangling EEPROM write_data");
       uint32_t address = FLASH_ADDRESS_START;
       while (address <= FLASH_ADDRESS_END) {
         uint32_t address_value = (*(__IO uint32_t*)address);

Marlin/src/HAL/STM32/fast_pwm.cpp

 
   PinName pin_name = digitalPinToPinName(pin);
   TIM_TypeDef *Instance = (TIM_TypeDef *)pinmap_peripheral(pin_name, PinMap_PWM); // Get HAL timer instance
-  
+
   LOOP_S_L_N(i, 0, NUM_HARDWARE_TIMERS) // Protect used timers
     if (timer_instance[i] && timer_instance[i]->getHandle()->Instance == Instance)
       return;

Marlin/src/HAL/STM32F1/watchdog.cpp

 #include "watchdog.h"
 
 /**
- *  The watchdog clock is 40Khz. We need a 4 seconds interval, so use a /256 preescaler and
- *  625 reload value (counts down to 0)
- *  use 1250 for 8 seconds
+ *  The watchdog clock is 40Khz. So for a 4s or 8s interval use a /256 preescaler and 625 or 1250 reload value (counts down to 0).
  */
 #define STM32F1_WD_RELOAD TERN(WATCHDOG_DURATION_8S, 1250, 625) // 4 or 8 second timeout
 
  *
  * @return No return
  *
- * @details The watchdog clock is 40Khz. We need a 4 seconds interval, so use a /256 preescaler and 625 reload value (counts down to 0)
+ * @details The watchdog clock is 40Khz. So for a 4s or 8s interval use a /256 preescaler and 625 or 1250 reload value (counts down to 0).
  */
 void watchdog_init() {
   #if DISABLED(DISABLE_WATCHDOG_INIT)

Marlin/src/HAL/STM32F1/watchdog.h

 
 #include <libmaple/iwdg.h>
 
-// Arduino STM32F1 core now has watchdog support
-
-// Initialize watchdog with a 4 second countdown time
+// Initialize watchdog with a 4 or 8 second countdown time
 void watchdog_init();
 
-// Reset watchdog. MUST be called at least every 4 seconds after the
-// first watchdog_init or STM32F1 will reset.
+// Reset watchdog. MUST be called every 4 or 8 seconds after the
+// first watchdog_init or the STM32F1 will reset.
 void HAL_watchdog_refresh();

Marlin/src/gcode/control/M3-M5.cpp

     else
       cutter.set_power(cutter.upower_to_ocr(get_s_power()));
   #elif ENABLED(SPINDLE_SERVO)
-    cutter.set_power(get_s_power()); 
+    cutter.set_power(get_s_power());
   #else
     cutter.set_enabled(true);
   #endif

Marlin/src/inc/Conditionals_LCD.h

   #define HAS_BED_PROBE 1
 #endif
 
+#if EITHER(MESH_BED_LEVELING, AUTO_BED_LEVELING_UBL)
+  #undef PROBE_MANUALLY
+#endif
+
 #if ANY(HAS_BED_PROBE, PROBE_MANUALLY, MESH_BED_LEVELING)
   #define PROBE_SELECTED 1
 #endif
   #define HAS_PROBING_PROCEDURE 1
 #endif
 #if !HAS_LEVELING
+  #undef PROBE_MANUALLY
   #undef RESTORE_LEVELING_AFTER_G28
 #endif
 

Marlin/src/inc/SanityCheck.h

    * Unified Bed Leveling
    */
 
-  // Hide PROBE_MANUALLY from the rest of the code
-  #undef PROBE_MANUALLY
-
   #if IS_SCARA
     #error "AUTO_BED_LEVELING_UBL does not yet support SCARA printers."
   #elif DISABLED(EEPROM_SETTINGS)
 
 #elif ENABLED(MESH_BED_LEVELING)
 
-  // Hide PROBE_MANUALLY from the rest of the code
-  #undef PROBE_MANUALLY
-
-  /**
-   * Mesh Bed Leveling
-   */
-
+  // Mesh Bed Leveling
   #if ENABLED(DELTA)
     #error "MESH_BED_LEVELING is not compatible with DELTA printers."
   #elif GRID_MAX_POINTS_X > 9 || GRID_MAX_POINTS_Y > 9

Marlin/src/lcd/extui/lib/dgus/fysetc/DGUSDisplayDef.cpp

 
 #if ENABLED(DGUS_LCD_UI_FYSETC)
 
-#include "../DGUSDisplayDef.h"
+#include "DGUSDisplayDef.h"
 #include "../DGUSDisplay.h"
 #include "../DGUSScreenHandler.h"
 

Marlin/src/lcd/extui/lib/dgus/fysetc/DGUSDisplayDef.h

  */
 #pragma once
 
+#include "../DGUSDisplayDef.h"
+
 enum DGUSLCD_Screens : uint8_t {
   DGUSLCD_SCREEN_BOOT                =   0,
   DGUSLCD_SCREEN_MAIN                =   1,

Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_4.h

     *                  -----                           -----
     *                   LCD                             LCD
     */
-    
+
     #define LCD_PINS_RS                    P1_23
 
     #define BTN_EN1                        P1_20

buildroot/share/PlatformIO/scripts/common-cxxflags.py

 
 # Useful for JTAG debugging
 #
-# It will separe release and debug build folders. 
-# It useful when we need keep two live versions: one debug, for debugging, 
+# It will separe release and debug build folders.
+# It useful when we need keep two live versions: one debug, for debugging,
 # other release, for flashing.
 # Without this, PIO will recompile everything twice for any small change.
-# 
+#
 if env.GetBuildType() == "debug":
 	env['BUILD_DIR'] = '$PROJECT_BUILD_DIR/$PIOENV/debug'