[gnumeric] xlsx: warning killer

[Morten Welinder <mortenw src gnome org>]

commit 53d37d015c3c1313105cf0061d2f411aed18431d
Author: Morten Welinder <terra gnome org>
Date:   Sun Nov 19 11:58:46 2017 -0500

    xlsx: warning killer

 plugins/excel/xlsx-write-drawing.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/plugins/excel/xlsx-write-drawing.c b/plugins/excel/xlsx-write-drawing.c
index 0900514..4de8bc6 100644
--- a/plugins/excel/xlsx-write-drawing.c
+++ b/plugins/excel/xlsx-write-drawing.c
@@ -1023,12 +1023,14 @@ xlsx_write_one_plot (XLSXWriteState *state, GsfXMLOut *xml,
        case XLSX_PT_XLCONTOURPLOT:
                axis_type[2] = GOG_AXIS_PSEUDO_3D;
                gsf_xml_out_start_element (xml, "c:surfaceChart");
+               xlsx_write_chart_bool (xml, "c:wireframe", FALSE);
                break;
 
        case XLSX_PT_GOGSURFACEPLOT:
        case XLSX_PT_XLSURFACEPLOT:
                axis_type[2] = GOG_AXIS_Z;
                gsf_xml_out_start_element (xml, "c:surface3DChart");
+               xlsx_write_chart_bool (xml, "c:wireframe", FALSE);
                break;
        }
 
@@ -1089,7 +1091,6 @@ xlsx_write_one_plot (XLSXWriteState *state, GsfXMLOut *xml,
                        const char *trend_type;
                        GogObject *eq;
                        GOData *dat;
-                       char *name;
                        double intercept = gnm_nan;
 
                        if (!GOG_IS_TREND_LINE (trend))
@@ -1315,6 +1316,8 @@ xlsx_write_one_chart (XLSXWriteState *state, GsfXMLOut *xml, GogObject const *ch
                        gsf_xml_out_end_element (xml);
                        done = TRUE;
                        break;
+               default:
+                       ; // Nothing
                }
        }