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>

internal/poly1305/sum_generic.go

@@ -136,7 +136,7 @@ func shiftRightBy2(a uint128) uint128 {
 // updateGeneric absorbs msg into the state.h accumulator. For each chunk m of
 // 128 bits of message, it computes
 //
-//     h₊ = (h + m) * r  mod  2¹³⁰ - 5
+//	h₊ = (h + m) * r  mod  2¹³⁰ - 5
 //
 // If the msg length is not a multiple of TagSize, it assumes the last
 // incomplete chunk is the final one.
@@ -278,8 +278,7 @@ const (
 
 // finalize completes the modular reduction of h and computes
 //
-//     out = h + s  mod  2¹²⁸
-//
+//	out = h + s  mod  2¹²⁸
 func finalize(out *[TagSize]byte, h *[3]uint64, s *[2]uint64) {
 	h0, h1, h2 := h[0], h[1], h[2]
 

internal/poly1305/sum_s390x.go

@@ -14,6 +14,7 @@ import (
 // updateVX is an assembly implementation of Poly1305 that uses vector
 // instructions. It must only be called if the vector facility (vx) is
 // available.
+//
 //go:noescape
 func updateVX(state *macState, msg []byte)