gnu: Add go-github-com-rylans-getlang.

* gnu/packages/golang.scm (go-github-com-rylans-getlang): New variable.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu/packages/golang.scm

@@ -13038,6 +13038,32 @@ (define-public go-github-com-riywo-loginshell
 of the current user.")
     (license license:expat)))
 
+(define-public go-github-com-rylans-getlang
+  (package
+    (name "go-github-com-rylans-getlang")
+    (version "0.0.0-20201227074721-9e7f44ff8aa0")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/rylans/getlang")
+                    (commit (go-version->git-ref version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "1yf698h21j88d7d9wkzq69cfd7vs1mfp96nhb83lx6hhh7rfvb92"))))
+    (build-system go-build-system)
+    (arguments
+     (list #:import-path "github.com/rylans/getlang"))
+    (propagated-inputs
+     (list go-golang-org-x-text))
+    (native-inputs
+     (list go-github-com-stretchr-testify))
+    (home-page "https://github.com/rylans/getlang")
+    (synopsis "Natural language detection package in pure Go")
+    (description
+     "This package provides fast natural language detection in Go.")
+    (license license:expat)))
+
 (define-public go-github-com-kyoh86-xdg
   (package
     (name "go-github-com-kyoh86-xdg")