indent(1): consider tab characters when forcing a newline after a comma

usr.bin/indent/indent.c

@@ -1058,7 +1058,9 @@ main(int argc, char **argv)
 	    if (ps.p_l_follow == 0) {
 		if (ps.block_init_level <= 0)
 		    ps.block_init = 0;
-		if (break_comma && (!ps.leave_comma || compute_code_target() + (e_code - s_code) > max_col - tabsize))
+		if (break_comma && (!ps.leave_comma ||
+		    count_spaces_until(compute_code_target(), s_code, e_code) >
+		    max_col - tabsize))
 		    force_nl = true;
 	    }
 	    break;

usr.bin/indent/tests/declarations.0

@@ -44,6 +44,7 @@ void t2 (char *x, int y)
 	,n
 	,o
 	;
+	int		chars[ /* push the comma beyond column 74 .... */ ], x;
 }
 
 const int	int_minimum_size =

usr.bin/indent/tests/declarations.0.stdout

@@ -36,6 +36,8 @@ t2(char *x, int y)
 		       ,n
 		       ,o
 		       ;
+	int		chars[ /* push the comma beyond column 74 .... */ ],
+			x;
 }
 
 const int	int_minimum_size =