runtime(doc): fix some small errors
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/pi_tutor.txt b/runtime/doc/pi_tutor.txt
index f4f86e8..590d2e4 100644
--- a/runtime/doc/pi_tutor.txt
+++ b/runtime/doc/pi_tutor.txt
@@ -1,4 +1,4 @@
-*pi_tutor.txt* For Vim version 9.1. Last change: 2024 Dec 16
+*pi_tutor.txt* For Vim version 9.1. Last change: 2024 Dec 17
INTERACTIVE TUTORIALS FOR VIM *vim-tutor-mode*
@@ -30,7 +30,7 @@
language if possible (|v:lang|), e.g. to open the
chapter 1 of the Italian tutor, use: >
- :lang it_IT.utf-8
+ :lang it_IT.UTF-8
:Tutor
<
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