cmd/link/internal/s390: return comparison directly
cmd/link/internal/s390: return comparison directly

Change-Id: I171905d5cd7a121de549827ef4d5968510aa3efc
Reviewed-on: https://go-review.googlesource.com/c/go/+/436705
Reviewed-by: Than McIntosh <4b2922593166fc595a9b1a408f34f5d3817fe9d2@google.com>
TryBot-Result: Gopher Robot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>
Reviewed-by: Cherry Mui <d62e63aa42ce272d7b6a5055d97e942b33a34679@google.com>
Reviewed-by: hopehook <63023fcaeafd0730eb709923fc3c0482e6977249@golangcn.org>
Run-TryBot: Cherry Mui <d62e63aa42ce272d7b6a5055d97e942b33a34679@google.com>
Run-TryBot: xie cui <445dd9517fbe3a6bac75d0d2795bff146b58b184@qq.com>
Run-TryBot: Ian Lance Taylor <87e9c6d529889242b7e184afb632328636553ab4@golang.org>
Auto-Submit: Ian Lance Taylor <87e9c6d529889242b7e184afb632328636553ab4@golang.org>

golang/go,golang/go,golang/go,golang/go,golang/go,golang/go,golang/go,golang/go