Trivial typography improvement

Use an em dash instead of -- in documentation.

diff --git a/gtk/gtkbuilder.c b/gtk/gtkbuilder.c
index b07ee5eeabf23468f015516a0558eddc6438767c..320c3e6ffa33cd11eb508e1dc1e9dbcd78b8a3a9 100644 (file)
--- a/gtk/gtkbuilder.c
+++ b/gtk/gtkbuilder.c
@@ -128,7 +128,7 @@
  * in the local xml fragment and objects exposed via
  * gtk_builder_expose_object().
  * 
- * In general, GtkBuilder allows forward references to objects --
+ * In general, GtkBuilder allows forward references to objects —
  * declared in the local xml; an object doesn’t have to be constructed
  * before it can be referred to. The exception to this rule is that an
  * object has to be constructed before it can be used as the value of