[cogl/cogl-1.22] Initialize out variables

[Emmanuele Bassi <ebassi src gnome org>]

commit ca5226513eb64bceb38ca01994799c4e7cd9f5fa
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Thu Sep 3 08:58:44 2015 +0100

    Initialize out variables
    
    Avoids a compiler warning with strict compilation flags.

 cogl/driver/gl/gl/cogl-driver-gl.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/cogl/driver/gl/gl/cogl-driver-gl.c b/cogl/driver/gl/gl/cogl-driver-gl.c
index 0bcb9ce..716d1dd 100644
--- a/cogl/driver/gl/gl/cogl-driver-gl.c
+++ b/cogl/driver/gl/gl/cogl-driver-gl.c
@@ -103,9 +103,9 @@ _cogl_driver_pixel_format_to_gl (CoglContext *context,
                                  GLenum *out_gltype)
 {
   CoglPixelFormat required_format;
-  GLenum glintformat;
+  GLenum glintformat = 0;
   GLenum glformat = 0;
-  GLenum gltype;
+  GLenum gltype = 0;
 
   required_format = format;