mbacarella/pleac-clojure — pull request #1 by jafingerhut (2011-11-24 07:16:52+00:00)
Title: Updates to section 1 Clojure examples.

Use 2-argument subs when it matches the behavior of the 2-argument
Perl substr.

Replace format with printf, since corresponding Perl example does
printing as side effect like Clojure printf. Clojure format returns a
string as a value like Perl sprintf, but without any I/O side effect.

Correct example for exchanging values without temporary variables.