fix typo in SqlServerCache ctor (dotnet/extensions#1230)
fix typo in SqlServerCache ctor (dotnet/extensions#1230)

\n\nCommit migrated from https://github.com/dotnet/extensions/commit/292cc938324cdadd92c4532121c079e48389f12e

aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore,aspnet/AspNetCore