Fix issue 347: always initialize backgrounds

git-svn-id: http://tint2.googlecode.com/svn/trunk@681 121b4492-b84c-0410-8b4c-0d4edfb3f3cc

src/config.c

@@ -157,6 +157,7 @@ void add_entry (char *key, char *value)
 	if (strcmp (key, "rounded") == 0) {
 		// 'rounded' is the first parameter => alloc a new background
 		Background bg;
+		memset(&bg, 0, sizeof(bg));
 		bg.border.rounded = atoi(value);
 		g_array_append_val(backgrounds, bg);
 	}