Update runtime files.
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index 4d26df8..2963193 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1,4 +1,4 @@
-*options.txt* For Vim version 8.2. Last change: 2020 Dec 21
+*options.txt* For Vim version 8.2. Last change: 2021 Jan 08
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -438,7 +438,7 @@
CTRL-? CTRL-H
not CTRL-? CTRL-?
- (CTRL-? is 0177 octal, 0x7f hex)
+ (CTRL-? is 0o177 octal, 0x7f hex)
If your delete key terminal code is wrong, but the
code for backspace is alright, you can put this in