simpler check and deps messages

rig/docs/index.html

@@ -316,7 +316,7 @@ make cluster reset              <span class="c"># destroy and rebuild — how an
       <h3>Checking on things</h3>
       <dl>
         <dt>make cluster list</dt><dd>Every cluster on the machine, its memory cost and its port block. The usual reason a new one will not start is an old one you forgot about; <code>make cluster free</code> frees them without deleting.</dd>
-        <dt>make check</dt><dd>Also this environment's port block, its registry and the profile's addons.</dd>
+        <dt>make check</dt><dd>Short: host, toolchain, and whether this cluster fits, its ports, registry and addons. Details only appear when something needs attention; <code>make check all</code> prints every one.</dd>
         <dt>make check mem</dt><dd>Memory in depth: what caps it, how far it really climbs, and on WSL the <code>.wslconfig</code> backup and restore.</dd>
       </dl>