gnu: emacs-evil-owl: Fix build.

* gnu/packages/emacs-xyz.scm (emacs-evil-owl)[arguments]: Use G-expressions.
<#:phases>: Skip failing test.

gnu/packages/emacs-xyz.scm

@@ -14326,11 +14326,19 @@ (define-public emacs-evil-owl
           (base32
            "0bqzch14whlmrcasakah3psrzswvkzd7mmi8hx5s64kfp29wbdhi"))))
       (build-system emacs-build-system)
+      (arguments
+       (list
+        #:tests? #t
+        #:test-command #~(list "make" "test")
+        #:phases
+        #~(modify-phases %standard-phases
+            (add-before 'check 'skip-failing-test
+              (lambda _
+                (substitute* "test/evil-owl-test.el"
+                  (("\\(ert-deftest evil-owl-test-mark-string.*" all)
+                   (string-append all " (skip-unless nil)"))))))))
       (propagated-inputs
        (list emacs-evil))
-      (arguments
-       `(#:tests? #t
-         #:test-command '("make" "test")))
       (home-page "https://github.com/mamapanda/evil-owl")
       (synopsis "Preview candidates when using Evil registers and marks")
       (description