{filetype,map,syntax}.txt: Update Vim 8.2.4812

Author: tsuyoshicho

en/filetype.txt

@@ -1,4 +1,4 @@
-*filetype.txt*  For Vim version 8.2.  Last change: 2022 Apr 07
+*filetype.txt*  For Vim version 8.2.  Last change: 2022 Apr 09
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -155,6 +155,7 @@ variables can be used to overrule the filetype used for certain extensions:
 	*.pp		g:filetype_pp	|ft-pascal-syntax|
 	*.prg		g:filetype_prg
 	*.src		g:filetype_src
+	*.sys		g:filetype_sys
 	*.sh		g:bash_is_sh	|ft-sh-syntax|
 	*.tex		g:tex_flavor	|ft-tex-plugin|
 	*.w		g:filetype_w	|ft-cweb-syntax|

en/map.txt

@@ -1,4 +1,4 @@
-*map.txt*       For Vim version 8.2.  Last change: 2022 Apr 03
+*map.txt*       For Vim version 8.2.  Last change: 2022 Apr 14
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -1324,7 +1324,8 @@ underscore.  Example: >
 could define a mapping "<SNR>23_Add".
 
 When defining a function in a script, "s:" can be prepended to the name to
-make it local to the script.  But when a mapping is executed from outside of
+make it local to the script (in |Vim9| script functions without a prefix are
+local to the script).  But when a mapping is executed from outside of
 the script, it doesn't know in which script the function was defined.  To
 avoid this problem, use "<SID>" instead of "s:".  The same translation is done
 as for mappings.  This makes it possible to define a call to the function in

en/syntax.txt

@@ -215,7 +215,7 @@ A syntax group name doesn't specify any color or attributes itself.
 
 The name for a highlight or syntax group must consist of ASCII letters, digits
 and the underscore.  As a regexp: "[a-zA-Z0-9_]*".  However, Vim does not give
-an error when using other characters.  The maxium length of a group name is
+an error when using other characters.  The maximum length of a group name is
 about 200 bytes.  *E1249*
 
 To be able to allow each user to pick their favorite set of colors, there must