CDRIVER-2007 fix create-index test
CDRIVER-2007 fix create-index test

Depending on the network configuration, trying to create an index on
mongodb://example.com could cause "connection timeout" or "connection
refused", so don't specify the error message.

beingmeta/mongo-c-driver,jmikola/mongo-c-driver,beingmeta/mongo-c-driver,mongodb/mongo-c-driver,acmorrow/mongo-c-driver,jmikola/mongo-c-driver,acmorrow/mongo-c-driver,jmikola/mongo-c-driver,rcsanchez97/mongo-c-driver,mongodb/mongo-c-driver,remicollet/mongo-c-driver,jmikola/mongo-c-driver,mongodb/mongo-c-driver,remicollet/mongo-c-driver,beingmeta/mongo-c-driver,derickr/mongo-c-driver,derickr/mongo-c-driver,acmorrow/mongo-c-driver,rcsanchez97/mongo-c-driver,ajdavis/mongo-c-driver,ajdavis/mongo-c-driver,remicollet/mongo-c-driver,jmikola/mongo-c-driver,bjori/mongo-c-driver,mongodb/mongo-c-driver,ajdavis/mongo-c-driver,rcsanchez97/mongo-c-driver,beingmeta/mongo-c-driver,malexzx/mongo-c-driver,jmikola/mongo-c-driver,remicollet/mongo-c-driver,mongodb/mongo-c-driver,rcsanchez97/mongo-c-driver,bjori/mongo-c-driver,beingmeta/mongo-c-driver,bjori/mongo-c-driver,acmorrow/mongo-c-driver,ajdavis/mongo-c-driver,ajdavis/mongo-c-driver,rcsanchez97/mongo-c-driver,rcsanchez97/mongo-c-driver,beingmeta/mongo-c-driver,acmorrow/mongo-c-driver,jmikola/mongo-c-driver,remicollet/mongo-c-driver,remicollet/mongo-c-driver,bjori/mongo-c-driver,beingmeta/mongo-c-driver,mongodb/mongo-c-driver,beingmeta/mongo-c-driver,derickr/mongo-c-driver,remicollet/mongo-c-driver,malexzx/mongo-c-driver,ajdavis/mongo-c-driver,malexzx/mongo-c-driver,derickr/mongo-c-driver,derickr/mongo-c-driver,bjori/mongo-c-driver,derickr/mongo-c-driver,malexzx/mongo-c-driver,acmorrow/mongo-c-driver,derickr/mongo-c-driver,rcsanchez97/mongo-c-driver,mongodb/mongo-c-driver,bjori/mongo-c-driver,acmorrow/mongo-c-driver,ajdavis/mongo-c-driver,bjori/mongo-c-driver