gnu: lolcat: Update to 1.4.

* gnu/packages/toys.scm (lolcat): Update to 1.4.
[version]: Switch to release tag.
[arguments]: Use G-expressions. Remove trailing #t.
<#:phases>: Replace assoc-ref with #$output.

Signed-off-by: 宋文武 <iyzsong@member.fsf.org>

gnu/packages/toys.scm

@@ -137,44 +137,41 @@ display via @command{fortune}, drawn from sources all around the world.")
       (license license:unlicense))))
 
 (define-public lolcat
-  (let ((commit "35dca3d0a381496d7195cd78f5b24aa7b62f2154")
-        (revision "0"))
   (package
     (name "lolcat")
-      (version (git-version "1.0" revision commit))
+    (version "1.4")
     (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/jaseg/lolcat")
-               (commit commit)))
+             (commit (string-append "v" version))))
        (sha256
         (base32
-           "0jjbkqcc2ikjxd1xgdyv4rb0vsw218181h89f2ywg29ffs3ypd8g"))
+         "0wyx184072z820njlc6qkvpxwcpjhj25gq4j0iw3jqzv3sk7mg7q"))
        (file-name (git-file-name name version))))
     (build-system gnu-build-system)
     (arguments
-       `(#:tests? #f                    ; no check target
+     (list
+      #:tests? #f                    ; no check target
       #:make-flags
-         (list ,(string-append "CC=" (cc-for-target)))
+      #~(list (string-append "CC=" #$(cc-for-target)))
       #:phases
-         (modify-phases %standard-phases
+      #~(modify-phases %standard-phases
           (delete 'bootstrap)
           (delete 'configure)
           (replace 'install
-             (lambda* (#:key outputs #:allow-other-keys)
-               (let* ((out  (assoc-ref outputs "out"))
-                      (dest (string-append out "/bin")))
+            (lambda _
+              (let ((dest (string-append #$output "/bin")))
                 (mkdir-p dest)
                 (install-file "lolcat" dest)
-                 (install-file "censor" dest)
-                 #t))))))
+                (install-file "censor" dest)))))))
     (home-page "https://github.com/jaseg/lolcat")
     (synopsis "Rainbow coloring effect for text console display")
     (description "@command{lolcat} concatenates files and streams like
 regular @command{cat}, but it also adds terminal escape codes between
 characters and lines resulting in a rainbow effect.")
-      (license license:wtfpl2))))
+    (license license:wtfpl2)))
 
 (define-public oneko
   (package