rapid7/metasploit-framework — pull request #899 by wchen-r7 (2012-10-13 02:51:15+00:00)
Title: Add print_warning()

So we've been kind of using print_debug() as warning messages... we should have a real print_warning().

Related to pull request #891

Test case:
http://pastebin.com/B7swyJPv