* syntax.pod: Remove the docs about my horribly klugy   "_group" hack which is no longer present.
* syntax.pod: Remove the docs about my horribly klugy
  "_group" hack which is no longer present.

* Also add a note that .loadlib has an effect that extends
  to :load time as well.

git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@13284 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

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