sumdb/dirhash: correct documentation of hash
The "equivalent Unix command" was missing a layer of sha256sum.
Fixes golang/go#48498.
Change-Id: I1051bfa5fcbbf1625623d11cf21686b33da19b88
Reviewed-on: https://go-review.googlesource.com/c/mod/+/464295
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
diff --git a/sumdb/dirhash/hash.go b/sumdb/dirhash/hash.go
index 350403f..51ec4db 100644
--- a/sumdb/dirhash/hash.go
+++ b/sumdb/dirhash/hash.go
@@ -33,7 +33,7 @@
// Hash1 is "h1:" followed by the base64-encoded SHA-256 hash of a summary
// prepared as if by the Unix command:
//
-// find . -type f | sort | sha256sum
+// sha256sum $(find . -type f | sort) | sha256sum
//
// More precisely, the hashed summary contains a single line for each file in the list,
// ordered by sort.Strings applied to the file names, where each line consists of
