`vault read -field=<field_name>` produces incorrect output

[marc-]

Vault adds carriage return and new line characters to output if -field used.

$ du /tmp/key
0       /tmp/key
$ vault write -address=http://127.0.0.1:8200 secret/encrypted key=@/tmp/key
$ vault read -address=http://127.0.0.1:8200 -field=key secret/encrypted > /tmp/key1
$ du /tmp/key1
4       /tmp/key1
$ xxd -p /tmp/key1
0d0a

Please note that documentation claims:

-field=field            If included, the raw value of the specified field
                          will be output raw to stdout.