(ITS#8978) Fix mdb_env_open2() failing when getting handle for NTDLL.dll

Full_Name: Ka Ho Ng Version: mdb.master OS: Windows 10 URL: ftp://ftp.openldap.org/incoming/Ka-Ho-Ng-190218.patch Submission from: (NULL) (2001:470:fa95:1300::1)

Fix mdb_env_open2() failing when getting handle for NTDLL.dll

Always call GetModuleHandleW() with Unicode string, as mdb_fopen() is calling CreateFileW() already. Otherwise GetModuleHandle() will fail with non-Unicode string.

I, Ka Ho Ng, hereby place the following modifications to OpenLDAP Software (and only these modifications) into the public domain. Hence, these modifications may be freely used and/or redistributed for any purpose with or without attribution and/or other notice.