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-rw-r--r--doc/emacs/display.texi6
1 files changed, 4 insertions, 2 deletions
diff --git a/doc/emacs/display.texi b/doc/emacs/display.texi
index 9cf6baa7e91..f464a3a59f0 100644
--- a/doc/emacs/display.texi
+++ b/doc/emacs/display.texi
@@ -974,8 +974,10 @@ the buffer is loaded. For example, to highlight all occurrences of
the word ``whim'' using the default face (a yellow background), type
@kbd{M-s h r whim @key{RET} @key{RET}}. Any face can be used for
highlighting, Hi Lock provides several of its own and these are
-pre-loaded into a list of default values. While being prompted
-for a face use @kbd{M-n} and @kbd{M-p} to cycle through them.
+pre-loaded into a list of default values. While being prompted for a
+face use @kbd{M-n} and @kbd{M-p} to cycle through them. A prefix
+numeric argument limits the highlighting to the corresponding
+subexpression.
@vindex hi-lock-auto-select-face
Setting the option @code{hi-lock-auto-select-face} to a non-@code{nil}