gnucash-on-windows master: Install mingw-libtool instead of msys-libtool because the latter lacks libltdl.

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash-on-windows/commit/13536fb1 (commit)
	from  https://github.com/Gnucash/gnucash-on-windows/commit/3f25ce7d (commit)



commit 13536fb122c1a0f2fb671a5d537e7df17aba8b75
Author: John Ralls <jralls at ceridwen.us>
Date:   Sun Aug 13 22:34:14 2017 +0300

    Install mingw-libtool instead of msys-libtool because the latter lacks libltdl.



Summary of changes:
 setup-mingw64.ps1 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)