[gtksourceview] StyleScheme: add a comment

[Sébastien Wilmet <swilmet src gnome org>]

commit f2d754fa02dddb8ade4f2ee448d50157a409c982
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sat Sep 6 18:49:27 2014 +0200

    StyleScheme: add a comment

 gtksourceview/gtksourcestylescheme.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/gtksourceview/gtksourcestylescheme.c b/gtksourceview/gtksourcestylescheme.c
index 1c9d051..bc78bb3 100644
--- a/gtksourceview/gtksourcestylescheme.c
+++ b/gtksourceview/gtksourcestylescheme.c
@@ -833,6 +833,10 @@ generate_css_style (GtkSourceStyleScheme *scheme)
                append_css_style (final_style, style, ".right");
                append_css_style (final_style, style, ".bottom");
                append_css_style (final_style, style, ".left");
+
+               /* For the corners if the top or bottom gutter is also
+                * displayed.
+                */
                append_css_style (final_style, style, "GtkSourceView");
        }