Fix size and checksum of x-face-e21.el.gz.
x-face-e21.el is for Emacs 21 and later. However, graphics/xface.el
doesn't care recent Emacsen, but mail/x-face-e21.el does.
The conflict between graphics/xface.el and graphics/xface.el should
be fixed in the future.

Reported by: Alexey Shuvaev <shuvaevatphysik.uni-wuerzburg.de>
PR: ports/141839