[glom] Fix a typo in a comment.

[Murray Cumming <murrayc src gnome org>]

commit ed6ca3ca11db55288dbc3bed488cd41e7b6b0af3
Author: Murray Cumming <murrayc murrayc com>
Date:   Mon Sep 7 15:53:30 2015 +0200

    Fix a typo in a comment.

 glom/libglom/document/document.cc |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/glom/libglom/document/document.cc b/glom/libglom/document/document.cc
index deeee07..f85abbc 100644
--- a/glom/libglom/document/document.cc
+++ b/glom/libglom/document/document.cc
@@ -5113,7 +5113,7 @@ Document::type_list_lookups Document::get_lookup_fields(const Glib::ustring& tab
       auto relationship = field->get_lookup_relationship();
       if(relationship)
       {
-        //If the relationship is triggererd by the specified field:
+        //If the relationship is triggered by the specified field:
         if(relationship->get_from_field() == field_name)
         {
           //Add it: