bug#37420: [PATCH] Recommend against SHA-1 for security-related applications

[Eli Zaretskii]

> From: Stefan Kangas <stefan@marxist.se>
> Date: Mon, 16 Sep 2019 23:50:33 +0200
> Cc: 37420@debbugs.gnu.org
> 
> +These symbols corresponds to the following hashing algorithms:
> +
> +    md5    - MD5
> +    sha1   - SHA-1
> +    sha224 - SHA-2 / SHA-224
> +    sha256 - SHA-2 / SHA-384
> +    sha384 - SHA-2 / SHA-384
> +    sha512 - SHA-2 / SHA-512

Please always use "--" to imply an em-dash in plain text.  In this
case, perhaps an even better way would be to explicitly say
"corresponds to".

Thanks.