gnu: macchanger: Update to 1.7.0.

* gnu/packages/networking.scm (macchanger): Update to 1.7.0.
[source]: Update URI.

gnu/packages/networking.scm

@@ -87,17 +87,22 @@ (define-module (gnu packages networking)
   #:use-module (gnu packages xml)
   #:use-module (ice-9 match))
 
+;; The gnu.org ‘home’ for this GNU project is a directory listing with 1.6.0 as
+;; the latest version.  The author's git repository, mentioned in the 1.6.0
+;; README and otherwise legit-looking, contains a proper 1.7.0 release tarball
+;; with many OUI updates.  Use it, even though it's also several years old now.
 (define-public macchanger
   (package
     (name "macchanger")
-    (version "1.6.0")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "mirror://gnu/"
-                                  name "/" name "-" version ".tar.gz"))
-              (sha256
-               (base32
-                "1xsiivjjyhqcs6dyjcshrnxlgypvyfzacjz7gcjgl88xiw9lylri"))))
+    (version "1.7.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "https://github.com/alobbs/macchanger/"
+                           "releases/download/" version "/"
+                           name "-" version ".tar.gz"))
+       (sha256
+        (base32 "1gs5m0jxyprdp00w2qkbnaqm3ilkjz0q1gqdg4nzdm8g4xy73qns"))))
     (build-system gnu-build-system)
     (home-page "https://www.gnu.org/software/macchanger/")
     (synopsis "Viewing and manipulating MAC addresses of network interfaces")