gnu: python-wrapper: Append "-wrapper" to the underlying package name.

Reported by Federico Beffa <beffa@ieee.org>.

* gnu/packages/python.scm (wrap-python3): Change the default value of
'name' to include the name of PYTHON.  This disambiguates between
'python-minimal-wrapper' and 'python-wrapper'.

gnu/packages/python.scm

@@ -307,7 +307,9 @@ data types.")
     (inputs `(("openssl" ,openssl)
               ("zlib" ,zlib)))))
 
-(define* (wrap-python3 python #:optional (name "python-wrapper"))
+(define* (wrap-python3 python
+                       #:optional
+                       (name (string-append (package-name python) "-wrapper")))
   (package (inherit python)
     (name name)
     (source #f)