sync with HEAD again

libraries/liblutil/utils.c

@@ -641,11 +641,13 @@ scale( int new, lutil_int_decnum *prev, unsigned char *tmp )
 	}
 
 	out = tmp + prev->bufsiz;
-	for ( i = -1; new ; i-- ) {
+	i = 0;
+	do {
+		i--;
 		new += out[i];
 		out[i] = new & 0xff;
 		new >>= 8;
-	}
+	} while ( new );
 	prev->beg = prev->bufsiz + i;
 	prev->len = -i;
 	AC_MEMCPY( prev->buf+prev->beg, tmp+prev->beg, prev->len );