Clean up spaces and words

Marlin/src/inc/SanityCheck.h

@@ -3337,12 +3337,11 @@ static_assert(   _ARR_TEST(3,0) && _ARR_TEST(3,1) && _ARR_TEST(3,2)
   #endif
 #endif
 
-
 /**
  * Sanity Check for MEATPACK and BINARY_FILE_TRANSFER Features
  */
 #if BOTH(MEATPACK, BINARY_FILE_TRANSFER)
-  #error "Either enable MEATPACK or enable BINARY_FILE_TRANSFER."
+  #error "Either enable MEATPACK or BINARY_FILE_TRANSFER, not both."
 #endif
 
 /**