General cleanup

Marlin/src/HAL/STM32_F4_F7/eeprom_emul.cpp

  * @brief  Erases PAGE and PAGE1 and writes VALID_PAGE header to PAGE
  * @param  None
  * @retval Status of the last operation (Flash write or erase) done during
- *         EEPROM formating
+ *         EEPROM formatting
  */
 static HAL_StatusTypeDef EE_Format() {
   FLASH_EraseInitTypeDef pEraseInit;

Marlin/src/gcode/feature/i2c/M260_M261.cpp

 /**
  * M260: Send data to a I2C slave device
  *
- * This is a PoC, the formating and arguments for the GCODE will
+ * This is a PoC, the formatting and arguments for the GCODE will
  * change to be more compatible, the current proposal is:
  *
  *  M260 A<slave device address base 10> ; Sets the I2C slave address the data will be sent to

Marlin/src/gcode/gcode.cpp

 
       #if ENABLED(G38_PROBE_TARGET)
         case 38:                                                  // G38.2, G38.3: Probe towards target
-          if (WITHIN(parser.subcode, 2,
-            #if ENABLED(G38_PROBE_AWAY)
-              5
-            #else
-              3
-            #endif
-          )) G38(parser.subcode);                                 // G38.4, G38.5: Probe away from target
+          if (WITHIN(parser.subcode, 2, TERN(G38_PROBE_AWAY, 5, 3)))
+            G38(parser.subcode);                                  // G38.4, G38.5: Probe away from target
           break;
       #endif
 
         case 108: M108(); break;                                  // M108: Cancel Waiting
         case 112: M112(); break;                                  // M112: Full Shutdown
         case 410: M410(); break;                                  // M410: Quickstop - Abort all the planned moves.
-        #if ENABLED(HOST_PROMPT_SUPPORT)
-          case 876: M876(); break;                                // M876: Handle Host prompt responses
-        #endif
+        TERN_(HOST_PROMPT_SUPPORT, case 876:)                     // M876: Handle Host prompt responses
       #else
         case 108: case 112: case 410:
-        #if ENABLED(HOST_PROMPT_SUPPORT)
-          case 876:
-        #endif
+        TERN_(HOST_PROMPT_SUPPORT, case 876:)
         break;
       #endif