Eclipse >> Patch plugin
Use the "New Feature Patch" wizard -> Fill in Feature patch and Feature being patched
Result:
<feature id="org.example.patch" label="Patch" version="1.0.0">
<requires>
<import feature="org.eclipse.equinox.p2.user.ui" version="1.1.0.v20090605-1440-7u6Fb3FbPbJP5MiKiZgpdl" patch="true"/>
</requires>
<plugin id="org.eclipse.equinox.p2.touchpoint.eclipse" version="1.0.101.v20090611" unpack="false"/>
</feature>