Changes for clojure.core/char?

philos99 on Wed, 28 Sep 2011
user=> (char? \a)
true

user=> (char? 22)
false

user=> (char? "a")
false

user=> (char? (first "abc"))
true
mattdw on Wed, 28 Jul 2010
user=> (char? \a)
true
user=> (char? 22)
false
user=> (char? "a")
false
user=> (char? (first "abc"))
true