app-text/mupdf: fix libressl and openssl

app-text/mupdf: fix libressl and openssl

openssl's requirements is actually 1.1+. prior to this change, mupdf
compiled with openssl support unless openssl 1.1+ was installed.

libressl support requires a patch to work properly.

Also, other minor fixes. See closed bugs.

Closes: https://bugs.gentoo.org/671062
Closes: https://bugs.gentoo.org/623732
Closes: https://bugs.gentoo.org/669698
Closes: https://bugs.gentoo.org/670832
Signed-off-by: Virgil Dupras <vdupras@gentoo.org>
Package-Manager: Portage-2.3.51, Repoman-2.3.11