Update calendar package

init.el

@@ -17,23 +17,26 @@
 (mouse-wheel-mode 1)
 (blink-cursor-mode -1)
 
-;; Customization for locale, environment and computer
-(setq european-calendar-style t
-      calendar-latitude 49.4
-      calendar-longitude 11.0
-      calendar-location-name "Nuremberg, DE"
-      calendar-christian-all-holidays-flag t
-      calendar-date-style (quote iso)
-      calendar-view-diary-initially-flag t
-      calendar-week-start-day 1
-      calendar-intermonth-text
-      '(propertize
-        (format "%2d"
-                (car
-                 (calendar-iso-from-absolute
-                  (calendar-absolute-from-gregorian
-                   (list month day year )))))
-        'font-lock-face 'font-lock-function-name-face))
+(use-package calendar
+  :ensure nil
+  :config
+  (setq calendar-latitude 49.4)
+  (setq calendar-longitude 11.0)
+  (setq calendar-location-name "Nuremberg, DE")
+  :custom
+  (european-calendar-style t)
+  (calendar-christian-all-holidays-flag t)
+  (calendar-date-style (quote iso))
+  (calendar-view-diary-initially-flag t)
+  (calendar-week-start-day 1)
+  (calendar-intermonth-text
+   '(propertize
+     (format "%2d"
+             (car
+              (calendar-iso-from-absolute
+               (calendar-absolute-from-gregorian
+                (list month day year )))))
+     'font-lock-face 'font-lock-function-name-face)))
 
 (setq ispell-program-name "hunspell")
 (setq grep-command "grep -i -nH -e ")