cmd/link: move comma outside quotes
cmd/link: move comma outside quotes

Change-Id: I2ecf8976a6289924ac7bfe7ace129a462537e11d
Reviewed-on: https://go-review.googlesource.com/c/go/+/248339
Reviewed-by: Emmanuel Odeke <277f8eaa8c7dfbc55c17bf5e30561c1a9c45c569@gmail.com>
Reviewed-by: Than McIntosh <4b2922593166fc595a9b1a408f34f5d3817fe9d2@google.com>

cloudflare/go,CAFxX/go,CAFxX/go,nawawi/go,nawawi/go,CAFxX/go,CAFxX/go,golang/go,nawawi/go,golang/go,golang/go,golang/go,CAFxX/go,cloudflare/go,CAFxX/go,CAFxX/go,golang/go,cloudflare/go,nawawi/go,cloudflare/go,nawawi/go,cloudflare/go,CAFxX/go,golang/go,cloudflare/go,golang/go,nawawi/go,nawawi/go,cloudflare/go,nawawi/go,golang/go,cloudflare/go