gnu: emacs-bbdb-vcard: Skip failing tests.

* gnu/packages/emacs-xyz.scm (emacs-bbdb-vcard)[arguments]
{test-command}: Set it.
{phases}: Add phase 'patch-tests to make it run. Some tests are
failing.

Signed-off-by: Liliana Marie Prikler <liliana.prikler@gmail.com>

gnu/packages/emacs-xyz.scm

@@ -4810,6 +4810,21 @@ mode, Rmail, Gnus, MH-E, and VM).  BBDB is fully customizable.")
                  (base32
                   "1sr5kd2gvw1b4hl147yb60cgx6j730vdnpyr09p7vmpw65hzwlwm"))))
       (build-system emacs-build-system)
+      (arguments
+       (list
+        #:test-command #~(list "make" "test")
+        #:phases
+        #~(modify-phases %standard-phases
+            (add-before 'check 'patch-tests
+              (lambda _
+                (substitute* "Makefile"
+                  (("test: \\$\\(ELCS\\)")
+                   "test:"))
+                ;; FIXME Unclear why these tests fail.
+                (substitute* "bbdb-vcard-tests.el"
+                  (("\\(ert-deftest bbdb-vcard-test-(bad-1|rfc2426) .*" all)
+                   (string-append all "(skip-unless nil)"))))))))
+      (native-inputs (list which))
       (propagated-inputs (list emacs-bbdb))
       (home-page "https://github.com/tohojo/bbdb-vcard")
       (synopsis