remove whitespace after dispatch char?

From this comment on PR-195, should Standard Clojure Style remove whitespace after the dispatch character # for certain forms?

Some examples:

## NaN
##NaN

#:user {:a 1}
#:user{:a 1}

#::u {:a 1}
#::u{:a 1}

#:: {:a 1}
#::{:a 1}

#inst "2014-05-19T19:12:37.925-00:00"
#inst"2014-05-19T19:12:37.925-00:00"

#js {:onClick (fn [e] (js/console.log e))}
#js{:onClick (fn [e] (js/console.log e))}

#? (:clj true :cljs false}
#?(:clj true :cljs false}

#?@ (:clj [:a :b :c])
#?@(:clj [:a :b :c])

#= (* 2 3)
#=(* 2 3)

cc @yuhan0 - thank you for this suggestion and the examples!

Start with the linked PR-195 discussion and inspect the formatter's handling of the dispatch character in the examples listed here. Determine the intended whitespace behavior for each form, then verify that the chosen behavior is covered for the shown cases.