gnu: python-binwalk: Rename to binwalk.

* gnu/packages/python-xyz.scm (binwalk): New variable renamed from
(python-binwalk): this old thing.  Redefine it using DEPRECATED-PACKAGE.
* gnu/packages/diffoscope.scm (diffoscope)[native-inputs]: Adjust accordingly.

gnu/packages/diffoscope.scm

@@ -156,9 +156,9 @@ (define-public diffoscope
               ("xxd" ,xxd)))
     (native-inputs `(("help2man" ,help2man)
                      ;; Below are modules used for tests.
+                     ("binwalk" ,binwalk)
                      ("python-pytest" ,python-pytest)
                      ("python-chardet" ,python-chardet)
-                     ("python-binwalk" ,python-binwalk)
                      ("python-black" ,python-black)
                      ("python-h5py" ,python-h5py)
                      ("python-pypdf2" ,python-pypdf2)

gnu/packages/python-xyz.scm

@@ -16440,9 +16440,9 @@ (define-public python2-binaryornot
        `(("python2-enum34" ,python2-enum34)
          ,@(package-propagated-inputs base))))))
 
-(define-public python-binwalk
+(define-public binwalk
   (package
-    (name "python-binwalk")
+    (name "binwalk")
     (version "2.2.0")
     (source
      (origin
@@ -16475,6 +16475,9 @@ (define-public python-binwalk
 extracting firmware images")
     (license license:expat)))
 
+(define-public python-binwalk
+  (deprecated-package "python-binwalk" binwalk))
+
 (define-public python-nltk
   (package
     (name "python-nltk")