Jetpack comment subscribe question

Do not edit the Twenty Eleven theme. It is the default WordPress theme and having access to an unedited version of the theme is vital when dealing with a range of site issues. Create a child theme for your changes.

You can download a pre-made Twenty Eleven child theme from here

I am using a child theme.

Then you need to add the relevant CSS to your child’s stylesheet. Try using Firefox with the Firebug add-on for this kind of CSS work.
https://getfirebug.com/

Well, firebug didn’t help me, but I did manage to find some code from another support thread.
.subscribe-label {
display: inline !important;
}
Sweet!