[gnome-builder] buildpanel: use — instead of text for empty state

[Christian Hergert <chergert src gnome org>]

commit 5a4c5084adf5bc51273a960823c9e791316da340
Author: Christian Hergert <chergert redhat com>
Date:   Sat Dec 19 02:22:52 2015 -0800

    buildpanel: use — instead of text for empty state

 plugins/build-tools/gbp-build-panel.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/plugins/build-tools/gbp-build-panel.c b/plugins/build-tools/gbp-build-panel.c
index 60d560a..4a84da0 100644
--- a/plugins/build-tools/gbp-build-panel.c
+++ b/plugins/build-tools/gbp-build-panel.c
@@ -216,8 +216,8 @@ gbp_build_panel_connect (GbpBuildPanel  *self,
   self->error_count = 0;
   self->warning_count = 0;
 
-  gtk_label_set_label (self->warnings_label, _("No warnings"));
-  gtk_label_set_label (self->errors_label, _("No errors"));
+  gtk_label_set_label (self->warnings_label, "—");
+  gtk_label_set_label (self->errors_label, "—");
 
   egg_signal_group_set_target (self->signals, result);
   egg_binding_group_set_source (self->bindings, result);