#4986 Fix XeLaTeX option consistent with XeTeX option

[Masamichi Hosoda]

Fix XeLaTeX option consistent with XeTeX option

In LilyPond, XeTeX uses option
--output-driver='xdvipdfmx -C 0x0010'
but XeLaTeX did not use any options.

This commit makes XeLaTeX uses the same option
for consistent with XeTeX.

http://codereview.appspot.com/315820043

[Anonymous]

Passes make, make check and a full make doc.

[Anonymous]

Patch on countdown for October 31st

[Anonymous]

Patch counted down - please push.

[Masamichi Hosoda]

I've pushed.
commit 5a51d882b01ad555ffe7659e7f7a73144ad2fc9d