Clarify hi-lock-file-patterns-prefix doc string

* lisp/hi-lock.el (hi-lock-file-patterns-prefix): Clarify doc
string (bug#17993).

1 files changed, 1 insertions, 1 deletions

diff --git a/lisp/hi-lock.el b/lisp/hi-lock.el
index f790546747d..65465d3b4c8 100644
--- a/lisp/hi-lock.el
+++ b/lisp/hi-lock.el
@@ -245,7 +245,7 @@ Instead, each hi-lock command will cycle through the faces in
                                 "23.1")
 
 (defvar hi-lock-file-patterns-prefix "Hi-lock"
-  "Search target for finding hi-lock patterns at top of file.")
+  "String used to identify hi-lock patterns at the start of files.")
 
 (defvar hi-lock-archaic-interface-message-used nil
   "True if user alerted that `global-hi-lock-mode' is now the global switch.