[evolution-data-server] Add translator comments into camel-sasl-anonymous.c

[Milan Crha <mcrha src gnome org>]

commit 4839df3a745bd3973cbe45fe30c325f454040a94
Author: Milan Crha <mcrha redhat com>
Date:   Thu Oct 25 18:21:21 2018 +0200

    Add translator comments into camel-sasl-anonymous.c
    
    Related to https://bugzilla.gnome.org/show_bug.cgi?id=658742

 src/camel/camel-sasl-anonymous.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)
---
diff --git a/src/camel/camel-sasl-anonymous.c b/src/camel/camel-sasl-anonymous.c
index 90ff4889d..ca0f98c14 100644
--- a/src/camel/camel-sasl-anonymous.c
+++ b/src/camel/camel-sasl-anonymous.c
@@ -78,6 +78,9 @@ sasl_anonymous_challenge_sync (CamelSasl *sasl,
                        g_set_error (
                                error, CAMEL_SERVICE_ERROR,
                                CAMEL_SERVICE_ERROR_CANT_AUTHENTICATE,
+                               /* Translators: the 'trace information' term comes from 
https://tools.ietf.org/html/rfc4505
+                                  In this case the user set to use an email address as the trace information,
+                                  but the provided value is not a valid email address. */
                                _("Invalid email address trace information:\n%s"),
                                sasl_anon->priv->trace_info);
                        g_object_unref (cia);
@@ -92,6 +95,9 @@ sasl_anonymous_challenge_sync (CamelSasl *sasl,
                        g_set_error (
                                error, CAMEL_SERVICE_ERROR,
                                CAMEL_SERVICE_ERROR_CANT_AUTHENTICATE,
+                               /* Translators: the 'trace information' term comes from 
https://tools.ietf.org/html/rfc4505
+                                  In this case the user set to use an opaque trace information,
+                                  but the provided value looks like an email address. */
                                _("Invalid opaque trace information:\n%s"),
                                sasl_anon->priv->trace_info);
                        return NULL;
@@ -103,11 +109,10 @@ sasl_anonymous_challenge_sync (CamelSasl *sasl,
                ret = g_byte_array_new ();
                break;
        default:
-               g_set_error (
+               g_set_error_literal (
                        error, CAMEL_SERVICE_ERROR,
                        CAMEL_SERVICE_ERROR_CANT_AUTHENTICATE,
-                       _("Invalid trace information:\n%s"),
-                       sasl_anon->priv->trace_info);
+                       _("Invalid argument"));
                return NULL;
        }