gnu: Go: Update to 1.12.16 [fixes CVE-2018-17075].

* gnu/packages/golang.scm (go-1.12): Update to 1.12.16.

Signed-off-by: Leo Famulari <[email protected]>

Author: meithecatte

gnu/packages/golang.scm

@@ -220,15 +220,15 @@ in the style of communicating sequential processes (@dfn{CSP}).")
   (package
     (inherit go-1.4)
     (name "go")
-    (version "1.12.15")
+    (version "1.12.16")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "https://storage.googleapis.com/golang/"
                            name version ".src.tar.gz"))
        (sha256
         (base32
-         "1hw4xjywcl883dnvfbb92w85sy8n231fdri4aynj8xajgr0p9fla"))))
+         "1y0x10fsvgpc1x24b9q9y6kv9b0kwf7879am3p0gym2abgc5wvnf"))))
     (arguments
      (substitute-keyword-arguments (package-arguments go-1.4)
        ((#:phases phases)