gnucash-on-windows master: Update installer script for restructured scheme files

[Geert Janssens]

Updated	 via  https://github.com/Gnucash/gnucash-on-windows/commit/86dcf63f (commit)
	from  https://github.com/Gnucash/gnucash-on-windows/commit/85fe534c (commit)



commit 86dcf63f350875b96e7d093ffd3b9975037cfeee
Author: Geert Janssens <geert at kobaltwit.be>
Date:   Mon Jun 17 22:58:54 2019 +0200

    Update installer script for restructured scheme files
    
    lib/gnucash/scm is used for gnucash 3.x
    lib/guile/2.2/site/ is the new location starting with gnucah 4.x
    
    As the same build scripts are used for both series, make the
    old path optional. Note this may require a clean build for
    master to get right.



Summary of changes:
 inno_setup/gnucash-mingw64.iss | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)