Minor enhancement to psql tab completion. If we see "CREATE TEMPORARY",

Minor enhancement to psql tab completion. If we see "CREATE TEMPORARY",
we can complete "TABLE". The previous coding only looked for "CREATE TEMP".

Note that I didn't add TEMPORARY to the list of suggested completions
after we've seen "CREATE", since TEMP is equivalent and more concise. But
if the user has already manually typed TEMPORARY, we may as well
complete TABLE for them.