unix.S: Restore stack pointer when returning from ffi_closure_UNIX.

	* src/ia64/unix.S: Restore stack pointer when returning from
	ffi_closure_UNIX.
	* src/ia64/ffi.c: Fix typo in comment

From-SVN: r41594

libffi/ChangeLog

+2001-04-25 Hans Boehm <Hans_Boehm@hp.com>
+	* src/ia64/unix.S: Restore stack pointer when returning from
+	ffi_closure_UNIX.
+	* src/ia64/ffi.c: Fix typo in comment.
+
 2001-04-18  Jim Wilson  <wilson@redhat.com>
 
 	* src/ia64/unix.S: Delete unnecessary increment and decrement of loc2