gnu: emacs-which-key: update to 3.4.0

[[PGP Signed Part:No public key for 7C7AFFBEFEF2CB25 created at 2020-03-17T19:10:10+0100 using RSA]]
* gnu/packages/emacs-xyz.scm (emacs-which-key): Update to 3.4.0

From f36fee740bab3d74b526358be421a1527af9b69d Mon Sep 17 00:00:00 2001
From: Michael Rohleder <mike@rohleder.de>
Date: Tue, 17 Mar 2020 19:03:45 +0100
Subject: [PATCH] gnu: emacs-which-key: update to 3.4.0

* gnu/packages/emacs-xyz.scm (emacs-which-key): Update to 3.4.0

gnu/packages/emacs-xyz.scm

@@ -10404,7 +10404,7 @@ (define-public emacs-dired-sidebar
 (define-public emacs-which-key
   (package
     (name "emacs-which-key")
-    (version "3.3.1")
+    (version "3.4.0")
     (source
      (origin
        (method git-fetch)
@@ -10413,7 +10413,7 @@ (define-public emacs-which-key
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "1dh6kr00wmql46whjkvnl953zngiv5j99ypvr1b3cb2174623afb"))))
+        (base32 "1ahgb7dqdc75farkl0fg0a6hvx2067gdvjq99cd3z2dz56km0p05"))))
     (build-system emacs-build-system)
     (arguments
      `(#:tests? #t