[mutter] meta-background-actor: Style fix

[Alessandro Bono <abono src gnome org>]

commit 7ba44e79452871cf20ec130da0c8c9d88960d691
Author: Alessandro Bono <abono gnome org>
Date:   Sun Aug 20 13:10:31 2017 +0200

    meta-background-actor: Style fix
    
    https://bugzilla.gnome.org/show_bug.cgi?id=786618

 src/compositor/meta-background-actor.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/compositor/meta-background-actor.c b/src/compositor/meta-background-actor.c
index 4dc5806..fe1af56 100644
--- a/src/compositor/meta-background-actor.c
+++ b/src/compositor/meta-background-actor.c
@@ -115,7 +115,7 @@ typedef enum {
 #define FRAGMENT_SHADER_CODE                                                   \
 "float t = 2.0 * length(position);\n"                                          \
 "t = min(t, 1.0);\n"                                                           \
-"float pixel_brightness = 1.0 - t * vignette_sharpness;\n"                       \
+"float pixel_brightness = 1.0 - t * vignette_sharpness;\n"                     \
 "cogl_color_out.rgb = cogl_color_out.rgb * pixel_brightness;\n"                \
 
 typedef struct _MetaBackgroundLayer MetaBackgroundLayer;