gnu: tremc: Update to 0.9.1.

* gnu/packages/bittorrent.scm (tremc): Update to 0.9.1.
[source]: Use release tag.

gnu/packages/bittorrent.scm

@@ -179,21 +179,18 @@ XML-RPC over SCGI.")
     (license l:gpl2+)))
 
 (define-public tremc
-  (let ((commit "e06d08d8d76aa0559593ffc1188f4a90100cdbdb")
-        (revision "2"))
   (package
     (name "tremc")
-      (version (git-version "0.9.0" revision commit))
+    (version "0.9.1")
     (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/louipc/tremc.git")
-                 (commit commit)))
+             (commit version)))
        (file-name (git-file-name name version))
        (sha256
-           (base32
-            "17rf74sajcn5fl718rgl2qk5mw5yz9hrh58hbcg4p55wrazzrm1i"))))
+        (base32 "1yhwvlcyv1s830p5a7q5x3mkb3mbvr5cn5nh7y62l5b6iyyynlvm"))))
     (build-system gnu-build-system)
     (arguments
      `(#:tests? #f                      ; no test suite
@@ -201,8 +198,7 @@ XML-RPC over SCGI.")
        (list (string-append "PREFIX=" (assoc-ref %outputs "out")))
        #:phases
        (modify-phases %standard-phases
-           ;; The software is just a Python script that must be copied into
-           ;; place.
+         ;; The software is just a Python script that must be copied into place.
          (delete 'configure)
          (delete 'build))))
     (inputs
@@ -211,7 +207,7 @@ XML-RPC over SCGI.")
     (description "Tremc is a console client, with a curses interface, for the
 Transmission BitTorrent daemon.")
     (home-page "https://github.com/louipc/tremc")
-      (license l:gpl3+))))
+    (license l:gpl3+)))
 
 (define-public transmission-remote-cli
   (package