[goffice] GOFormat: use a old format for odf export of invisible characters.

[Morten Welinder <mortenw src gnome org>]

commit 582c3de3d4d414906e48659ed41fc500f56458a0
Author: Morten Welinder <terra gnome org>
Date:   Sun Apr 20 21:11:27 2014 -0400

    GOFormat: use a old format for odf export of invisible characters.

 goffice/utils/go-format.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)
---
diff --git a/goffice/utils/go-format.c b/goffice/utils/go-format.c
index 8ec2ed5..de75c99 100644
--- a/goffice/utils/go-format.c
+++ b/goffice/utils/go-format.c
@@ -8501,10 +8501,16 @@ go_format_output_number_to_odf (GsfXMLOut *xout, GOFormat const *fmt,
                                        gsf_xml_out_add_cstr (xout, NULL, accum->str);
                                        g_string_truncate (accum, 0);
 
+                                       /*
+                                        * Readers that do not understand gnm:invisible will
+                                        * see this space.  Readers that do understand the tag
+                                        * will reach back and replace this space.
+                                        */
+                                       gsf_xml_out_add_cstr (xout, NULL, " ");
+
                                        gsf_xml_out_start_element (xout, GNMSTYLE "invisible");
                                        gsf_xml_out_add_cstr (xout, GNMSTYLE  "char", text);
-                                       odf_add_bool (xout, OFFICE "process-content", 1);
-                                       gsf_xml_out_add_cstr (xout, NULL, " ");
+                                       odf_add_bool (xout, OFFICE "process-content", TRUE);
                                        gsf_xml_out_end_element (xout); /* </gnm:invisible> */
                                        g_free (text);
                                } else {