Change Details

``` Add GO_TEST_TARGET defaulting to `./...` (the current package and all subpackages) and create do-test target unless already provided by port's Makefile. In many cases this would allow us to remove explicit do-test and rely on defaults provided by ports framework for testing. While here also - remove GO_WRKDIR_SRC - it is not used anywhere anymore - sync GO_PKGNAME and GO_TARGET descriptions with Porter's Handbook ```

``` Add GO_TESTTARGET defaulting to `./...` (the current package and all subpackages) and create do-test target unless already provided by port's Makefile. In many cases this would allow us to remove explicit do-test and rely on defaults provided by ports framework for testing. While here also - remove GO_WRKDIR_SRC - it is not used anywhere anymore - sync GO_PKGNAME and GO_TARGET descriptions with Porter's Handbook ```

``` Add GO_TEST_TARGET defaulting to `./...` (the current package and all subpackages) and create do-test target unless already provided by port's Makefile. In many cases this would allow us to remove explicit do-test and rely on defaults provided by ports framework for testing. While here also - remove GO_WRKDIR_SRC - it is not used anywhere anymore - sync GO_PKGNAME and GO_TARGET descriptions with Porter's Handbook ```