gnu: Move go-github-com-pkg-errors to the Golang package module.

* gnu/packages/syncthing.scm (go-github-com-pkg-errors): Move ...
* gnu/packages/golang.scm (go-github-com-pkg-errors): ... here.

gnu/packages/golang.scm

@@ -3584,3 +3584,25 @@ implementation of generics.")
 network protocol.")
     (home-page "https://github.com/lucas-clemente/quic-go")
     (license license:expat)))
+
+(define-public go-github-com-pkg-errors
+  (package
+    (name "go-github-com-pkg-errors")
+    (version "0.8.1")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/pkg/errors.git")
+                    (commit (string-append "v" version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "0g5qcb4d4fd96midz0zdk8b9kz8xkzwfa8kr1cliqbg8sxsy5vd1"))))
+    (build-system go-build-system)
+    (arguments
+     `(#:import-path "github.com/pkg/errors"))
+    (synopsis "Go error handling primitives")
+    (description "This package provides @code{error}, which offers simple
+error handling primitives in Go.")
+    (home-page "https://github.com/pkg/errors")
+    (license license:bsd-2)))

gnu/packages/syncthing.scm

@@ -739,28 +739,6 @@ hashes.")
       (home-page "https://github.com/chmduquesne/rollinghash")
       (license expat))))
 
-(define-public go-github-com-pkg-errors
-  (package
-    (name "go-github-com-pkg-errors")
-    (version "0.8.1")
-    (source (origin
-              (method git-fetch)
-              (uri (git-reference
-                    (url "https://github.com/pkg/errors.git")
-                    (commit (string-append "v" version))))
-              (file-name (git-file-name name version))
-              (sha256
-               (base32
-                "0g5qcb4d4fd96midz0zdk8b9kz8xkzwfa8kr1cliqbg8sxsy5vd1"))))
-    (build-system go-build-system)
-    (arguments
-     `(#:import-path "github.com/pkg/errors"))
-    (synopsis "Go error handling primitives")
-    (description "This package provides @code{error}, which offers simple
-error handling primitives in Go.")
-    (home-page "https://github.com/pkg/errors")
-    (license bsd-2)))
-
 (define-public go-github-com-petermattis-goid
   (let ((commit "3db12ebb2a599ba4a96bea1c17b61c2f78a40e02")
         (revision "0"))