[geary] Indicate the end of the conversation message body preview. Bug 765516.

[Michael Gratton <mjog src gnome org>]

commit f03fba9c77d2cba5704acf5727dd7d828664fdd5
Author: Michael James Gratton <mike vee net>
Date:   Sat Oct 8 17:33:54 2016 +1100

    Indicate the end of the conversation message body preview. Bug 765516.
    
    * src/client/conversation-viewer/conversation-message.vala
      (ConversationMessage::ConversationMessage): Add an ellipsis to the end
      of the preview text.

 .../conversation-viewer/conversation-message.vala  |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/client/conversation-viewer/conversation-message.vala 
b/src/client/conversation-viewer/conversation-message.vala
index d15a33b..d06208a 100644
--- a/src/client/conversation-viewer/conversation-message.vala
+++ b/src/client/conversation-viewer/conversation-message.vala
@@ -372,7 +372,7 @@ public class ConversationMessage : Gtk.Grid {
         this.preview_date.set_tooltip_text(date_tooltip);
 
         this.preview_body.set_text(
-            Geary.String.reduce_whitespace(this.message.get_preview())
+            Geary.String.reduce_whitespace(this.message.get_preview()) + "…"
         );
 
         // Full headers