[cogl] renderer: fix s/contraint/constraint/ typo

[Robert Bragg <rbragg src gnome org>]

commit 6b7af18313840bd74d11b51f4dea80c72c8830f6
Author: Robert Bragg <robert linux intel com>
Date:   Tue Jan 17 14:49:28 2012 +0000

    renderer: fix s/contraint/constraint/ typo
    
    The recent patch to add an api for explicitly constraining how a
    renderer backend is chosen had a typo which this patch fixes.
    
    Reviewed-by: Neil Roberts <neil linux intel com>

 cogl/cogl-renderer.c |    4 ++--
 cogl/cogl-renderer.h |    6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)
---
diff --git a/cogl/cogl-renderer.c b/cogl/cogl-renderer.c
index 281780d..694ea59 100644
--- a/cogl/cogl-renderer.c
+++ b/cogl/cogl-renderer.c
@@ -489,8 +489,8 @@ cogl_renderer_get_n_fragment_texture_units (CoglRenderer *renderer)
 }
 
 void
-cogl_renderer_add_contraint (CoglRenderer *renderer,
-                             CoglRendererConstraint constraint)
+cogl_renderer_add_constraint (CoglRenderer *renderer,
+                              CoglRendererConstraint constraint)
 {
   g_return_if_fail (!renderer->connected);
   renderer->constraints = g_list_prepend (renderer->constraints,
diff --git a/cogl/cogl-renderer.h b/cogl/cogl-renderer.h
index b160738..06b0f5c 100644
--- a/cogl/cogl-renderer.h
+++ b/cogl/cogl-renderer.h
@@ -286,7 +286,7 @@ typedef enum
 
 
 /**
- * cogl_renderer_add_contraint:
+ * cogl_renderer_add_constraint:
  * @renderer: An unconnected #CoglRenderer
  * @constraint: A #CoglRendererConstraint to add
  *
@@ -299,8 +299,8 @@ typedef enum
  * Stability: unstable
  */
 void
-cogl_renderer_add_contraint (CoglRenderer *renderer,
-                             CoglRendererConstraint constraint);
+cogl_renderer_add_constraint (CoglRenderer *renderer,
+                              CoglRendererConstraint constraint);
 
 /**
  * cogl_renderer_remove_constraint: