refactor(uncrustify): set maximum number of consecutive newlines to 2 (#18695)

src/nvim/digraph.c

@@ -1832,7 +1832,6 @@ static void printdigraph(const digr_T *dp, result_T *previous)
       msg_putchar('\n');
     }
 
-
     // Make msg_col a multiple of list_width by using spaces.
     if (msg_col % list_width != 0) {
       int spaces = (msg_col / list_width + 1) * list_width - msg_col;
@@ -2016,7 +2015,6 @@ typedef struct {
 
 #define KMAP_MAXLEN 20  // maximum length of "from" or "to"
 
-
 /// Set up key mapping tables for the 'keymap' option.
 ///
 /// @return NULL if OK, an error message for failure.  This only needs to be