[valadoc] HTML doclet: don't write '-' with no description

[Ben Iofel <beniofel src gnome org>]

commit 4705141291765beddbbe56258fa089ac53e55df6
Author: Ben Iofel <iofelben+github gmail com>
Date:   Fri Jan 8 17:54:52 2016 -0500

    HTML doclet: don't write '-' with no description

 src/libvaladoc/html/basicdoclet.vala |   16 ++++++++++++----
 1 files changed, 12 insertions(+), 4 deletions(-)
---
diff --git a/src/libvaladoc/html/basicdoclet.vala b/src/libvaladoc/html/basicdoclet.vala
index 7247f2b..67e76ad 100644
--- a/src/libvaladoc/html/basicdoclet.vala
+++ b/src/libvaladoc/html/basicdoclet.vala
@@ -434,6 +434,10 @@ public abstract class Valadoc.Html.BasicDoclet : Api.Visitor, Doclet {
                writer.end_tag ("div");
        }
 
+       private bool has_brief_description (Api.Node element) {
+               return element.documentation != null;
+       }
+
        private void write_brief_description (Api.Node element , Api.Node? pos) {
                Content.Comment? doctree = element.documentation;
                if (doctree == null) {
@@ -917,8 +921,10 @@ public abstract class Valadoc.Html.BasicDoclet : Api.Visitor, Doclet {
                        if (child.name != null) {
                                writer.start_tag ("li", {"class", cssresolver.resolve (child)});
                                writer.link (get_link (child, parent), child.name);
-                               writer.text (" - ");
-                               this.write_brief_description (child, parent);
+                               if (has_brief_description (child)) {
+                                       writer.text (" - ");
+                                       this.write_brief_description (child, parent);
+                               }
                                writer.end_tag ("li");
                                if (with_childs == true) {
                                        write_children (child, Api.NodeType.INTERFACE, "Interfaces", parent);
@@ -979,8 +985,10 @@ public abstract class Valadoc.Html.BasicDoclet : Api.Visitor, Doclet {
                                        } else {
                                                writer.link (get_link (child, container), child.name);
                                        }
-                                       writer.text (" - ");
-                                       write_brief_description (child, container);
+                                       if (has_brief_description (child)) {
+                                               writer.text (" - ");
+                                               write_brief_description (child, container);
+                                       }
                                } else {
                                        writer.start_tag ("span", {"class", css_leaf_code_definition});
                                        if (child is Symbol && ((Symbol) child).is_deprecated) {