fix double white space in preface.txt
commit9e075f900b39c90c200ae1963896feaecc2bad7a
authorTran Ngoc Quan <vnwildman@gmail.com>
Wed, 15 Dec 2010 02:03:05 +0000 (15 09:03 +0700)
committerTran Ngoc Quan <vnwildman@gmail.com>
Wed, 15 Dec 2010 02:03:05 +0000 (15 09:03 +0700)
tree868049b4f586bfc276a95a775f02aececa852670
parentb3aa95efcacb98d09cfb528e95c8e4756f8274fe
fix double white space in preface.txt
vi/preface.txt