t / t4101 / diff.2-3on commit utf8.c: move display_mode_esc_sequence_len() for use by other functions (4247fe7)
   1--- a/frotz
   2+++ b/frotz
   3@@ -1,2 +1,3 @@
   4 a
   5+c
   6 b
   7\ No newline at end of file