[gnumeric] Style: avoid critical on seeing PANGO_UNDERLINE_ERROR.

[Morten Welinder <mortenw src gnome org>]

commit d1d00d1d75566e15c890c51c41ed5d5917824001
Author: Morten Welinder <terra gnome org>
Date:   Thu Sep 11 08:55:26 2014 -0400

    Style: avoid critical on seeing PANGO_UNDERLINE_ERROR.

 ChangeLog   |    5 +++++
 src/style.c |    4 +++-
 2 files changed, 8 insertions(+), 1 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index a0aed10..c37023c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2014-09-11  Morten Welinder  <terra gnome org>
+
+       * src/style.c (gnm_translate_underline_from_pango): Survive
+       PANGO_UNDERLINE_ERROR.
+
 2014-06-09  Morten Welinder <terra gnome org>
 
        * configure.ac: Post-release bump.
diff --git a/src/style.c b/src/style.c
index 15fdb0d..33c2ca8 100644
--- a/src/style.c
+++ b/src/style.c
@@ -644,7 +644,7 @@ GnmUnderline
 gnm_translate_underline_from_pango (PangoUnderline pul)
 {
        g_return_val_if_fail (pul >= PANGO_UNDERLINE_NONE, UNDERLINE_NONE);
-       g_return_val_if_fail (pul <= PANGO_UNDERLINE_LOW, UNDERLINE_NONE);
+       g_return_val_if_fail (pul <= PANGO_UNDERLINE_ERROR, UNDERLINE_NONE);
 
        switch (pul) {
        case PANGO_UNDERLINE_SINGLE:
@@ -653,6 +653,8 @@ gnm_translate_underline_from_pango (PangoUnderline pul)
                return UNDERLINE_DOUBLE;
        case PANGO_UNDERLINE_LOW:
                return UNDERLINE_SINGLE_LOW;
+       case PANGO_UNDERLINE_ERROR:
+               /* What?  */
        case PANGO_UNDERLINE_NONE:
        default:
                return UNDERLINE_NONE;