[goldpushk] Simplify goldpushk_test.go by using Goldpushk{...} literals instead of calling goldpushk.New().
[goldpushk] Simplify goldpushk_test.go by using Goldpushk{...} literals instead of calling goldpushk.New().

This will make it easier to add new command-line flags that need to be passed as constructor parameters from main.go.

Bug: skia:9076
Change-Id: I65371e6ffb193ebde68b0fe319cf1a7080c12651
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/244261
Auto-Submit: Leandro Lovisolo <f558143c2568be8d55575d13f30a1fc5cb8009d5@google.com>
Reviewed-by: Kevin Lubick <7cdab2cfab351f23814786ba39716e90eed69047@google.com>
Commit-Queue: Leandro Lovisolo <f558143c2568be8d55575d13f30a1fc5cb8009d5@google.com>

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