File libopensync-wrong-memset.patch of Package libopensync

--- formats/vformats-xml/vformat.c.orig
+++ formats/vformats-xml/vformat.c
@@ -1760,7 +1760,7 @@ static void base64_init(char *rank)
 {
 	int i;
 
-	memset(rank, 0xff, sizeof(rank));
+	memset(rank, 0xff, strlen(rank));
 	for (i=0;i<64;i++) {
 		rank[(unsigned int)base64_alphabet[i]] = i;
 	}