XSLT simple transforming

I have a very simple task, but I'm stuck here.

So, I have XML file like this:


<entries>
<entry>
    <field>field value</field>
</entry>
...
<entry>
    <field>field value</field>
</entry>

And it should be transformed with XSLT and looks like this:


<entries>
<entry field="field value">
...
<entry field="field value">
</entries>

Could you help me with template? Thanks a lot in advance.