[gtksourceview] stylescheme: raise priority of .current-line-number CSS

[Christian Hergert <chergert src gnome org>]

commit 553267f5cfa614bfc1ab2a39eb4ff38714c802e6
Author: Christian Hergert <chergert redhat com>
Date:   Mon Apr 15 14:33:55 2019 -0700

    stylescheme: raise priority of .current-line-number CSS
    
    When using GTK CSS to set the background of the current line number, we
    need to elevate the priority so that it takes precedence over the normal
    background color styling.
    
    This now uses "textview .current-line-number" which appears to be enough
    to raise the priority.
    
    Fixes #53

 gtksourceview/gtksourcestylescheme.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gtksourceview/gtksourcestylescheme.c b/gtksourceview/gtksourcestylescheme.c
index 667b6b46..5538ae3b 100644
--- a/gtksourceview/gtksourcestylescheme.c
+++ b/gtksourceview/gtksourcestylescheme.c
@@ -957,7 +957,7 @@ generate_css_style (GtkSourceStyleScheme *scheme)
        style = gtk_source_style_scheme_get_style (scheme, STYLE_CURRENT_LINE_NUMBER);
        if (style != NULL)
        {
-               append_css_style (final_style, style, ".current-line-number");
+               append_css_style (final_style, style, "textview .current-line-number");
        }
 
        if (*final_style->str != '\0')