runtime(doc): make examples verbatim to prevent conceal/tag parsing

closes: #17437

Signed-off-by: Yochem van Rosmalen <git@yochem.nl>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/syntax.txt b/runtime/doc/syntax.txt
index a23b892..44fed27 100644
--- a/runtime/doc/syntax.txt
+++ b/runtime/doc/syntax.txt
@@ -1,4 +1,4 @@
-*syntax.txt*	For Vim version 9.1.  Last change: 2025 Jun 01
+*syntax.txt*	For Vim version 9.1.  Last change: 2025 Jun 03
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -3102,7 +3102,7 @@
 This syntax file applies to the printcap and termcap databases.
 
 In order for Vim to recognize printcap/termcap files that do not match
-the patterns *printcap*, or *termcap*, you must put additional patterns
+the patterns "*printcap*", or "*termcap*", you must put additional patterns
 appropriate to your system in your |myfiletypefile| file.  For these
 patterns, you must set the variable "b:ptcap_type" to either "print" or
 "term", and then the 'filetype' option to ptcap.