Only if custom image is present

src/freedombone-utils-gnusocialtools

@@ -52,12 +52,12 @@ function qvitter_update_background {
     if [ -d /var/www/${domain_name}/htdocs/local/plugins/Qvitter/img ]; then
         if [ -f bg_custom.${ext} ]; then
             cp bg_custom.${ext} /var/www/${domain_name}/htdocs/local/plugins/Qvitter/img
-        fi
-        if ! grep -q "bg_custom.${ext}" /var/www/${domain_name}/htdocs/config.php; then
-            if grep -q 'sitebackground' /var/www/${domain_name}/htdocs/config.php; then
-                sed -i '/sitebackground/d' /var/www/${domain_name}/htdocs/config.php
+            if ! grep -q "bg_custom.${ext}" /var/www/${domain_name}/htdocs/config.php; then
+                if grep -q 'sitebackground' /var/www/${domain_name}/htdocs/config.php; then
+                    sed -i '/sitebackground/d' /var/www/${domain_name}/htdocs/config.php
+                fi
+                echo "\$config['site']['qvitter']['sitebackground'] = 'img/bg_custom.${ext}';" >> /var/www/${domain_name}/htdocs/config.php
             fi
-            echo "\$config['site']['qvitter']['sitebackground'] = 'img/bg_custom.${ext}';" >> /var/www/${domain_name}/htdocs/config.php
         fi
     fi
 }