[cogl] cogl: add missing colon in headers

[Robert Bragg <rbragg src gnome org>]

commit 08090beddf92cbc6e78f2f0b72332ee02e993617
Author: Lionel Landwerlin <llandwerlin gmail com>
Date:   Sat Aug 24 13:39:34 2013 +0100

    cogl: add missing colon in headers
    
    Reviewed-by: Robert Bragg <robert linux intel com>
    
    (cherry picked from commit fa2f47059cb94f7ff4601f7d5d8692f71abb0c21)

 cogl/cogl-depth-state.h |    2 +-
 cogl/cogl-output.h      |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/cogl/cogl-depth-state.h b/cogl/cogl-depth-state.h
index 4953c24..002dfe8 100644
--- a/cogl/cogl-depth-state.h
+++ b/cogl/cogl-depth-state.h
@@ -40,7 +40,7 @@ COGL_BEGIN_DECLS
  */
 
 /**
- * CoglDepthState
+ * CoglDepthState:
  *
  * Since: 2.0
  */
diff --git a/cogl/cogl-output.h b/cogl/cogl-output.h
index 473a5cc..c0cc7cc 100644
--- a/cogl/cogl-output.h
+++ b/cogl/cogl-output.h
@@ -61,7 +61,7 @@ typedef struct _CoglOutput CoglOutput;
 #define COGL_OUTPUT(X) ((CoglOutput *)(X))
 
 /**
- * CoglSubpixelOrder
+ * CoglSubpixelOrder:
  * @COGL_SUBPIXEL_ORDER_UNKNOWN: the layout of subpixel
  *   components for the device is unknown.
  * @COGL_SUBPIXEL_ORDER_NONE: the device displays colors