<arg>dselect-upgrade</arg>
<arg>install
<arg choice="plain" rep="repeat"><replaceable>pkg</replaceable>
- <group choice='opt'>
- <arg>
- =<replaceable>pkg_version_number</replaceable>
- </arg>
- <arg>
- /<replaceable>target_release_name</replaceable>
- </arg>
- </group>
+ <arg>
+ <group choice='req'>
+ <arg choice='plain'>
+ =<replaceable>pkg_version_number</replaceable>
+ </arg>
+ <arg choice='plain'>
+ /<replaceable>target_release_name</replaceable>
+ </arg>
+ </group>
+ </arg>
</arg>
</arg>
<arg>remove <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>