Bug 16920: sysprefs.sql - missing comma for MaxOpenSuggestions

Bug 16920: sysprefs.sql - missing comma for MaxOpenSuggestions

TEST PLAN
---------
1) back up DB
2) drop database koha_library;
3) create database koha_library;
4) run web browser install, choose ALL defaults
   -- notice the SQL syntax warning.
5) apply patch
6) repeat steps 2-4
   -- notice SQL syntax warning is gone.
7) run koha qa test tools
8) restore db

Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>