Update runtime files.
diff --git a/runtime/doc/todo.txt b/runtime/doc/todo.txt
index 5c88918..9a51915 100644
--- a/runtime/doc/todo.txt
+++ b/runtime/doc/todo.txt
@@ -1,4 +1,4 @@
-*todo.txt* For Vim version 8.2. Last change: 2020 Jan 20
+*todo.txt* For Vim version 8.2. Last change: 2020 Jan 23
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -121,7 +121,7 @@
conversions.
Error numbers available:
-E366, E450, E451, E452,
+E450, E451, E452,
E453, E454, E460, E489, E491, E565, E578, E610, E611, E653,
E654, E856, E857, E860, E861, E863, E889, E900
@@ -171,12 +171,12 @@
Should do current file first and not split it up when more results are found.
(Also #1890)
+Undo history wrong when ":next file" re-uses a buffer. (#5426)
+ex_next() should pass flag to do_argfile(), then to do_ecmd().
+
Adding "10" to 'spellsuggest' causes spell suggestions to become very slow.
(#4087)
-Instead of using a syntax error, use #error to fail early when something is
-wrong. E.g. in vim.h "Error:", and blowfish.c "error!". (#5299)
-
":helptags ALL" should skip directories where "tags" cannot be written.
(Matěj Cepl, #5026)