gcc/c-family/

	* c-warn.c (warn_for_address_or_pointer_of_packed_member):
	Replace "may may" with "may" in warning message.

gcc/testsuite/

	* gcc.dg/pr51628-20.c: Updated.
	* gcc.dg/pr51628-21.c: Likewise.
	* gcc.dg/pr51628-25.c: Likewise.

From-SVN: r267904