Remove the extra CFLAGS now that the driver has been fixed by jhb.


git-svn-id: svn+ssh://svn.freebsd.org/base/head@272442 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
strptime(3): Update manpage for %U and %W.

%U and %W were implemented as part of r272273 so take them
out of the BUGS section and mention them in the SYNOPSIS.

MFC after:	1 month


git-svn-id: svn+ssh://svn.freebsd.org/base/head@272443 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f