access: keep an SSH key's comment

A key's line was stored as the key alone (`ssh-ed25519 <base64>`), whatever comment it
came with, both from `PUT /auth/keys/<name>` and from `--bootstrap-keys`. Now its
comment is kept after it (`PublicKey::kept_line`), the spaces between its words made
one. The comment checks nothing: every use of a key parses the line, and the parse
reads the key alone.

1 files changed, 2 insertions, 2 deletions

diff --git a/docs/access.md b/docs/access.md
index 4bb5945..7392bb9 100644
--- a/docs/access.md
+++ b/docs/access.md
@@ -30,8 +30,8 @@ password hashes: every member reads the document).
   An entry that doesn't read as above gives less, never more: a capability that
   doesn't read is left out, and anything but `false` disables.
 * **`keys`**: the user's SSH keys, each by a name of its choosing, as an
-  `authorized_keys` line has it (`"laptop": "ssh-ed25519 AAAA…"`; Ed25519 only): what
-  it signs values with (Values signed by their users, below) and logs in with. A user
+  `authorized_keys` line has it (`"laptop": "ssh-ed25519 AAAA… alice@laptop"`; Ed25519
+  only; the comment is kept and checks nothing): what it signs values with (Values signed by their users, below) and logs in with. A user
   manages its own, whatever else it may do: `GET /auth/keys`, `PUT /auth/keys/<name>`
   with the line, `DELETE /auth/keys/<name>`; under a strict policy, by signing its
   entry with only its keys changed (`continuum-signed key-add laptop