[ 1174000 ] Miscellanous fixes (omitting the speedup for flash.c, obsoleted by an earlier patch)

git-svn-id: https://urjtag.svn.sourceforge.net/svnroot/urjtag/trunk@703 b68d4a1b-bc3d-0410-92ed-d4ac073336b7

jtag/src/tap/register.c

@@ -45,6 +45,8 @@ register_alloc( int len )
 		return NULL;
 	}
 
+	memset(tr->data, 0, len);
+
 	tr->string = malloc( len + 1 );
 	if (!tr->string) {
 		free( tr->data );