Use a hex value instead of possibly ambiguous 8 bit character

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6023 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/block-vvfat.c b/block-vvfat.c
index 57763b3..1ac4472 100644
--- a/block-vvfat.c
+++ b/block-vvfat.c
@@ -1249,7 +1249,7 @@
 	unsigned char* c=(unsigned char*)direntry;
 	int i;
 	for(i=1;i<11 && c[i] && c[i]!=0xff;i+=2)
-#define ADD_CHAR(c) {buffer[j] = (c); if (buffer[j] < ' ') buffer[j] = '°'; j++;}
+#define ADD_CHAR(c) {buffer[j] = (c); if (buffer[j] < ' ') buffer[j] = 0xb0; j++;}
 	    ADD_CHAR(c[i]);
 	for(i=14;i<26 && c[i] && c[i]!=0xff;i+=2)
 	    ADD_CHAR(c[i]);