Missed one call.

git-svn-id: http://svn.code.sf.net/p/vcmi/code/trunk/@3491 4dfc6b2a-8b31-0410-aa91-d6c70e3ac834
Unique macro for minizip exports. Define to nothing on non-msvc.

git-svn-id: http://svn.code.sf.net/p/vcmi/code/trunk/@3492 4dfc6b2a-8b31-0410-aa91-d6c70e3ac834