gnu: neomutt: Update to 20191102.

* gnu/packages/mail.scm (neomutt): Update to 20191102.

gnu/packages/mail.scm

@@ -399,21 +399,18 @@ operating systems.")
     (license gpl2+)))
 
 (define-public neomutt
-  (let ((tag "2019-10-25"))
   (package
     (name "neomutt")
-      ;; Upstream now uses YYYY-MM-DD instead of YYYYMMDD, but we're forever
-      ;; wed to the latter through ‘guix upgrade’.
-      (version (apply string-append (string-split tag #\-)))
+    (version "20191102")
     (source
      (origin
        (method git-fetch)
        (uri (git-reference
              (url "https://github.com/neomutt/neomutt.git")
-               (commit tag)))
+             (commit version)))
        (file-name (git-file-name name version))
        (sha256
-          (base32 "0hy6rxgm3acjqxpf4ss7391kps4g06fbjhbpgv1jdrj1y9kv0rm1"))))
+        (base32 "0x5f9zbvxsxg5y2ir4xq4xw1q2snaxkidhdyhcxw5ljw3qqwhlyq"))))
     (build-system gnu-build-system)
     (inputs
      `(("cyrus-sasl" ,cyrus-sasl)
@@ -493,7 +490,7 @@ operating systems.")
     (description
      "NeoMutt is a command-line mail reader which is based on mutt.
 It adds a large amount of new and improved features to mutt.")
-      (license gpl2+))))
+    (license gpl2+)))
 
 (define-public gmime
   (package