gnucash maint: Include libicu-i18n in libgncmod-engine linkage for new ICU API usage.

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash/commit/24d45766 (commit)
	from  https://github.com/Gnucash/gnucash/commit/f64dd086 (commit)



commit 24d4576617995980c147bb49cacafe6f16978573
Author: John Ralls <jralls at ceridwen.us>
Date:   Thu Aug 15 15:17:16 2019 -0700

    Include libicu-i18n in libgncmod-engine linkage for new ICU API usage.



Summary of changes:
 libgnucash/engine/CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)