gnu: python-regex: Improve package style.

* gnu/packages/python-xyz.scm (python-regex): Use G-expressions.
  Fix indentation.
  [description]: Start from a new line and fix fill column.

Change-Id: I423719c74c606dd610b3f7da4dc6fc1e6c569f71

gnu/packages/python-xyz.scm

@@ -27503,15 +27503,15 @@ class ShellOutSSHClientTests"))))
   (package
     (name "python-regex")
     (version "2022.1.18")
-    (source (origin
+    (source
+     (origin
        (method url-fetch)
        (uri (pypi-uri "regex" version))
        (sha256
-               (base32
-                "05ir92d0cmv8wkafn3r05j5q47l6shg7cpdblp2a8m407b02vwwp"))))
+        (base32 "05ir92d0cmv8wkafn3r05j5q47l6shg7cpdblp2a8m407b02vwwp"))))
     (build-system python-build-system)
     (arguments
-     '(#:phases
+     #~(#:phases
         (modify-phases %standard-phases
           (replace 'check
             (lambda* (#:key inputs outputs #:allow-other-keys)
@@ -27520,9 +27520,10 @@ class ShellOutSSHClientTests"))))
                       "from regex.test_regex import test_main ; test_main()"))))))
     (home-page "https://bitbucket.org/mrabarnett/mrab-regex")
     (synopsis "Alternative regular expression module")
-     (description "This regular expression implementation is backwards-
-compatible with the standard @code{re} module, but offers additional
-functionality like full case-folding for case-insensitive matches in Unicode.")
+    (description
+     "This regular expression implementation is backwards-compatible with the
+standard @code{re} module, but offers additional functionality like full
+case-folding for case-insensitive matches in Unicode.")
     (license license:psfl)))
 
 (define-public python-rencode