[gtksourceview] Fix typo in the API doc

[Sébastien Wilmet <swilmet src gnome org>]

commit 747c9762a0a7461f052c73192eef742964e1256e
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sun Mar 10 23:11:33 2013 +0100

    Fix typo in the API doc

 gtksourceview/gtksourcecompletionprovider.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtksourceview/gtksourcecompletionprovider.c b/gtksourceview/gtksourcecompletionprovider.c
index 2531d8a..a44ee88 100644
--- a/gtksourceview/gtksourcecompletionprovider.c
+++ b/gtksourceview/gtksourcecompletionprovider.c
@@ -332,7 +332,7 @@ gtk_source_completion_provider_get_start_iter (GtkSourceCompletionProvider *prov
  *
  * Here is how the default activation selects the boundaries of the word to
  * replace. The end of the word is @iter. For the start of the word, it depends
- * on wheter a start iter is defined for @proposal (see
+ * on whether a start iter is defined for @proposal (see
  * gtk_source_completion_provider_get_start_iter()). If a start iter is defined,
  * the start of the word is the start iter. Else, the word (as long as possible)
  * will contain only alphanumerical and the "_" characters.