CRLF to LF
bugfix: Normal centos does not have /usr/local/bin/perl
DRY
rename gannar.cgi to index.cgi
refactor
エラーメッセージをわかりやすく
refactor
refactor
more friendly error message
do not exit inside a subroutine
do not exit inside a subroutine
exit explicitly
refactor
refactor
refactor
refactor
indent
refactor
refactor
refactor