Typo

src/tests/umalloc_test.c

 	printf ( "Before allocation:\n" );
 	get_memmap ( &memmap );
 
-	bob = ymalloc ( 1234 );
-	bob = yrealloc ( bob, 12345 );
-	fred = ymalloc ( 999 );
+	bob = umalloc ( 1234 );
+	bob = urealloc ( bob, 12345 );
+	fred = umalloc ( 999 );
 
 	printf ( "After allocation:\n" );
 	get_memmap ( &memmap );