Fix trivial unit test errors that started when numpy version changed
Fix trivial unit test errors that started when numpy version changed

The version of numpy brought in by pip changed, which changed some
test outputs in meaningless ways (spaces, f.p. precision), and
those meaningless changes broke unit tests with
    assertEquals( "string literal", test(something) )

This change fixes those unit test errors, only occasionally addressing
the underlying issue, ie test results hyper-sensitive to string
formatting.

chapel-lang/chplforpyp-docs