[FIXED HUDSON-3322] <option> without value attribute.. firefox uses option body

as default, but IE7 does not.. so don't write <option> without value.. make it
same as option body when value attribute not given to f:option.


git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@17754 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/resources/lib/form/option.jelly

@@ -33,7 +33,6 @@ THE SOFTWARE.
       If true, the option value appears as selected.
     </st:attribute>
   </st:documentation>
-  <option value="${attrs.value}" selected="${attrs.selected?'true':null}">
-    <d:invokeBody/>
-  </option>
-</j:jelly>
\ No newline at end of file
+  <j:set var="optionBody"><d:invokeBody/></j:set>
+  <option value="${attrs.value!=null?attrs.value:optionBody}" selected="${attrs.selected?'true':null}">${optionBody}</option>
+</j:jelly>