Mark Solaris testing as done.

misc/plan.html

@@ -67,8 +67,8 @@
     <li class='should'> x86-w*ndows (using cross compiler and wine)</li>
     <li class='wish'> x86_64-w*ndows (seems a bit harder to get
     mingw64 and wine64 working)</li>
-    <li class='should'> sparc32-solaris10</li>
-    <li class='should'> sparc64-solaris10</li>
+    <li class='done'> sparc32-solaris10</li>
+    <li class='done'> sparc64-solaris10</li>
   </ul>
 
   <h1> Plans for nettle-3.0 </h1>