ipaservice: Use new convert_input_certificates

Certificates given by ansible could have leading and trailing white
space, but also multi line input is possible that also could have
leading and training white space and newlines.

plugins/modules/ipaservice.py

@@ -378,7 +378,7 @@ RETURN = """
 from ansible.module_utils.ansible_freeipa_module import \
     IPAAnsibleModule, compare_args_ipa, encode_certificate, \
     gen_add_del_lists, gen_add_list, gen_intersection_list, ipalib_errors, \
-    api_get_realm, to_text
+    api_get_realm, to_text, convert_input_certificates
 from ansible.module_utils import six
 if six.PY3:
     unicode = str
@@ -601,12 +601,6 @@ def main():
     # service attributes
     principal = ansible_module.params_get("principal")
     certificate = ansible_module.params_get("certificate")
-    # Any leading or trailing whitespace is removed while adding the
-    # certificate with serive_add_cert. To be able to compare the results
-    # from service_show with the given certificates we have to remove the
-    # white space also.
-    if certificate is not None:
-        certificate = [cert.strip() for cert in certificate]
     pac_type = ansible_module.params_get(
         "pac_type", allow_empty_list_item=True)
     auth_ind = ansible_module.params_get(
@@ -636,6 +630,8 @@ def main():
         ansible_module.fail_json(msg="At least one name or services is "
                                      "required")
     check_parameters(ansible_module, state, action, names)
+    certificate = convert_input_certificates(ansible_module, certificate,
+                                             state)
 
     # Use services if names is None
     if services is not None:
@@ -669,12 +665,8 @@ def main():
                 service_set.add(name)
                 principal = service.get("principal")
                 certificate = service.get("certificate")
-                # Any leading or trailing whitespace is removed while adding
-                # the certificate with serive_add_cert. To be able to compare
-                # the results from service_show with the given certificates
-                # we have to remove the white space also.
-                if certificate is not None:
-                    certificate = [cert.strip() for cert in certificate]
+                certificate = convert_input_certificates(ansible_module,
+                                                         certificate, state)
                 pac_type = service.get("pac_type")
                 auth_ind = service.get("auth_ind")
                 check_authind(ansible_module, auth_ind)