Bug fix/vs2017 15.8.2 iresearch build (#6428)
Bug fix/vs2017 15.8.2 iresearch build (#6428)

* Add workaround

* Wrong check

wiltonlazary/arangodb,Simran-B/arangodb,arangodb/arangodb,wiltonlazary/arangodb,arangodb/arangodb,fceller/arangodb,Simran-B/arangodb,fceller/arangodb,arangodb/arangodb,wiltonlazary/arangodb,fceller/arangodb,arangodb/arangodb,fceller/arangodb,Simran-B/arangodb,graetzer/arangodb,graetzer/arangodb,graetzer/arangodb,Simran-B/arangodb,graetzer/arangodb,arangodb/arangodb,Simran-B/arangodb,Simran-B/arangodb,fceller/arangodb,arangodb/arangodb,graetzer/arangodb,graetzer/arangodb,Simran-B/arangodb,wiltonlazary/arangodb,wiltonlazary/arangodb,graetzer/arangodb,graetzer/arangodb,graetzer/arangodb,graetzer/arangodb,graetzer/arangodb,fceller/arangodb,Simran-B/arangodb,graetzer/arangodb,Simran-B/arangodb,fceller/arangodb,arangodb/arangodb,graetzer/arangodb,Simran-B/arangodb,arangodb/arangodb,fceller/arangodb,fceller/arangodb,wiltonlazary/arangodb,wiltonlazary/arangodb,wiltonlazary/arangodb,graetzer/arangodb,fceller/arangodb