Update runtime files.
diff --git a/runtime/doc/help.txt b/runtime/doc/help.txt
index 58049f6..2be3ced 100644
--- a/runtime/doc/help.txt
+++ b/runtime/doc/help.txt
@@ -31,7 +31,7 @@
help entries for "word".
Or use ":helpgrep word". |:helpgrep|
-VIM stands for Vi IMproved. Most of VIM was made by Bram Moolenaar, but only
+Vim stands for Vi IMproved. Most of Vim was made by Bram Moolenaar, but only
through the help of many others. See |credits|.
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*doc-file-list* *Q_ct*