runtime(doc): Fix documentation typos

closes: #16333

Signed-off-by: h-east <h.east.727@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/version9.txt b/runtime/doc/version9.txt
index 3592103..bb39c43 100644
--- a/runtime/doc/version9.txt
+++ b/runtime/doc/version9.txt
@@ -1,4 +1,4 @@
-*version9.txt*  For Vim version 9.1.  Last change: 2024 Dec 28
+*version9.txt*  For Vim version 9.1.  Last change: 2024 Dec 29
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -41617,7 +41617,7 @@
   |CompleteDone| autocommand in the |v:event| dictionary
 - the default fontsize for the GTK builds of Vim (Windows and Unix) has been
   increased to 12pt to accomodate modern high-dpi monitors
-- filetype detection now detects bash scripts as a separate "bash filetype
+- filetype detection now detects bash scripts as a separate "bash" filetype
   instead of the "sh" filetype
 - the default value of the 'keyprotocol' option has been updated by support
   for the ghostty terminal emulator (using kitty protocol)