Fix warning

Author: jcs090218

docstr-key.el

@@ -30,6 +30,8 @@
 (require 'cl-lib)
 (require 's)
 
+(declare-function docstr-get-prefix "ext:docstr.el")
+
 (defcustom docstr-key-support nil
   "If non-nil, use key support to fulfill document string triggerations' conditions."
   :type 'boolean

docstr.el

@@ -6,7 +6,7 @@
 ;; Author: Shen, Jen-Chieh <[email protected]>
 ;; Description: A document string minor mode.
 ;; Keyword: document string
-;; Version: 5.5.1
+;; Version: 5.5.2
 ;; Package-Requires: ((emacs "24.4") (s "1.9.0"))
 ;; URL: https://github.com/jcs-elpa/docstr