[cogl] doc: Fix copy/paste error for cogl_framebuffer_get_alpha_bits()

[Damien Lespiau <dlespiau src gnome org>]

commit 04fbddd2fa02669046adfed0c64c301df1da4c7c
Author: Damien Lespiau <damien lespiau intel com>
Date:   Sun Dec 30 19:30:02 2012 +0000

    doc: Fix copy/paste error for cogl_framebuffer_get_alpha_bits()

 doc/reference/cogl2/cogl2-sections.txt |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/doc/reference/cogl2/cogl2-sections.txt b/doc/reference/cogl2/cogl2-sections.txt
index c3b643a..48d30c3 100644
--- a/doc/reference/cogl2/cogl2-sections.txt
+++ b/doc/reference/cogl2/cogl2-sections.txt
@@ -383,7 +383,7 @@ cogl_framebuffer_get_color_format
 cogl_framebuffer_get_red_bits
 cogl_framebuffer_get_green_bits
 cogl_framebuffer_get_blue_bits
-cogl_framebuffer_get_blue_bits
+cogl_framebuffer_get_alpha_bits
 cogl_framebuffer_get_color_mask
 cogl_framebuffer_set_color_mask
 cogl_framebuffer_get_samples_per_pixel