ShouldAllBe does not show the element predicate correctly for is operator

[alex-fomin]

The following snippet produce incorrect assertion message:

        batchCommand.Commands.ShouldAllBe(command=>command is CreateResourceCommand);

Shouldly.ShouldAssertException : batchCommand.Commands
    should satisfy the condition
command
    but
[Tp.Rest.Commands.UpdateResourceCommand (22668405), Tp.Rest.Commands.UpdateResourceCommand (29839228)]
    do not

I expect a command is CreateResourceCommand as an assertion message

[josephwoodward]

Just realised I'd not thanked you for raising this @alex-fomin! @ssiko has just submitted a PR to fix it.

[JakeGinnivan]

This has been released in https://github.com/shouldly/shouldly/releases/tag/v2.8.2