tests: telephony: Fix VPATH builds.

* gnu/tests/telephony.scm (%jami-account-content-sexp): New variable.  Compute
its value with `read` instead of using `include`.
* gnu/tests/data/jami-dummy-account.dat (%jami-account-content-sexp): Remove
variable.  Make the file contain just the S-expression.

Change-Id: I8d37aaf7b739f5f39715bfb8a9b8c9536385fd09
Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>

gnu/tests/data/jami-dummy-account.dat

@@ -1,8 +1,7 @@
 ;;; -*- mode: scheme; -*-
 ;;; JSON extracted from an actual Jami account and processed with
 ;;; Emacs/guile-json.
-(define %jami-account-content-sexp
-  '(("RINGCAKEY" . "LS0tLS1CRUdJTiBQUklWQVRFIEtFWS0tLS0tCk1JSUpRd0lCQURBTkJna3F\
+(("RINGCAKEY" . "LS0tLS1CRUdJTiBQUklWQVRFIEtFWS0tLS0tCk1JSUpRd0lCQURBTkJna3F\
 oa2lHOXcwQkFRRUZBQVNDQ1Mwd2dna3BBZ0VBQW9JQ0FRQzBxWUozSkYvTzhQRGEKRnUwRnpRcHBCaD\
 gybGJMdURrNTlVU0I0MUJSaS9kdDZGV1BRN29YOVpsY25vNGZzM2dmUHQ0dU1hRVBkVFBGKwowbGN2Q\
 jc2cytQTEFlcjlOZGpVQzQ2ZXp0UnNiNE9aQXc4ZUk1M3EwSU04QWJFd0o0ZjllLzBmQUFueHgrK3Qw\
@@ -389,4 +388,4 @@ yS0JFNHc2Z1R4SU1uZzVzWi9ZbDFjcG5wUHlsR3VICi0tLS0tRU5EIENFUlRJRklDQVRFLS0tLS0K")
  ("Account.alias" . "dummy")
  ("Account.activeCallLimit" . "-1")
  ("Account.accountPublish" . "false")
-    ("Account.accountDiscovery" . "false")))
+ ("Account.accountDiscovery" . "false"))

gnu/tests/telephony.scm

@@ -38,7 +38,10 @@
 ;;; Jami daemon.
 ;;;
 
-(include "data/jami-dummy-account.dat") ;defines %jami-account-content-sexp
+(define %jami-account-content-sexp
+  (call-with-input-file
+      (search-path %load-path "gnu/tests/data/jami-dummy-account.dat")
+    read))
 
 (define %dummy-jami-account-archive
   ;; A Jami account archive is a gzipped JSON file.