gnu: cdogs-sdl: Update to 0.6.7.

* gnu/packages/games.scm (cdogs-sdl): Update to 0.6.7.
[source]: Use version tag.

gnu/packages/games.scm

@@ -3666,46 +3666,43 @@ emerges from a sewer hole and pulls her below ground.")
                      license:cc-by-sa3.0)))))
 
 (define-public cdogs-sdl
-  ;; XXX: Use version 0.6.7 when it's available.
-  (let ((commit "bab2031369b9ea2dbeb7eedbde10a43dd8ca83db")
-        (revision "1"))
-   (package
-     (name "cdogs-sdl")
-     (version (git-version "0.6.6" revision commit))
-     (source (origin
-               (method git-fetch)
-               (uri (git-reference
-                     (url "https://github.com/cxong/cdogs-sdl.git")
-                     (commit commit)))
-               (file-name (git-file-name name version))
-               (sha256
-                (base32
-                 "09sfqhrrffhvxbhigvrxfmai52w01w3f9kjmixjhqvqlkhn77c9n"))))
-     (build-system cmake-build-system)
-     (arguments
-      `(#:configure-flags
-        (list (string-append "-DCDOGS_DATA_DIR="
-                             (assoc-ref %outputs "out")
-                             "/share/cdogs-sdl/"))))
-     (inputs
-      `(("mesa" ,mesa)
-        ("sdl2" ,sdl2)
-        ("sdl2-image" ,sdl2-image)
-        ("sdl2-mixer" ,sdl2-mixer)))
-     (home-page "https://cxong.github.io/cdogs-sdl/")
-     (synopsis "Classic overhead run-and-gun game")
-     (description "C-Dogs SDL is a classic overhead run-and-gun game,
+  (package
+    (name "cdogs-sdl")
+    (version "0.6.7")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/cxong/cdogs-sdl.git")
+                    (commit version)))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "1frafzsj3f83xkmn4llr7g728c82lcqi424ini1hv3gv5zjgpa15"))))
+    (build-system cmake-build-system)
+    (arguments
+     `(#:configure-flags
+       (list (string-append "-DCDOGS_DATA_DIR="
+                            (assoc-ref %outputs "out")
+                            "/share/cdogs-sdl/"))))
+    (inputs
+     `(("mesa" ,mesa)
+       ("sdl2" ,sdl2)
+       ("sdl2-image" ,sdl2-image)
+       ("sdl2-mixer" ,sdl2-mixer)))
+    (home-page "https://cxong.github.io/cdogs-sdl/")
+    (synopsis "Classic overhead run-and-gun game")
+    (description "C-Dogs SDL is a classic overhead run-and-gun game,
 supporting up to 4 players in co-op and deathmatch modes.  Customize your
 player, choose from many weapons, and blast, slide and slash your way through
 over 100 user-created campaigns.")
-     ;; GPLv2+ for code (includes files under BSD-2 and BSD-3),
-     ;; CC0/CC-BY/CC-BY-SA for assets.
-     (license (list license:gpl2+
-                    license:bsd-2
-                    license:bsd-3
-                    license:cc0
-                    license:cc-by3.0
-                    license:cc-by-sa3.0)))))
+    ;; GPLv2+ for code (includes files under BSD-2 and BSD-3),
+    ;; CC0/CC-BY/CC-BY-SA for assets.
+    (license (list license:gpl2+
+                   license:bsd-2
+                   license:bsd-3
+                   license:cc0
+                   license:cc-by3.0
+                   license:cc-by-sa3.0))))
 
 (define-public kiki
   (package