all: gofmt

Gofmt to update doc comments to the new formatting.

For golang/go#51082.

Change-Id: I076031b6613691eefbb0f21739366e3fd2011ec9
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/399356
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>

scrypt/scrypt.go

@@ -186,7 +186,7 @@ func smix(b []byte, r, N int, v, xy []uint32) {
 // For example, you can get a derived key for e.g. AES-256 (which needs a
 // 32-byte key) by doing:
 //
-//      dk, err := scrypt.Key([]byte("some password"), salt, 32768, 8, 1, 32)
+//	dk, err := scrypt.Key([]byte("some password"), salt, 32768, 8, 1, 32)
 //
 // The recommended parameters for interactive logins as of 2017 are N=32768, r=8
 // and p=1. The parameters N, r, and p should be increased as memory latency and