I changed default shell bash to zsh. it's not speciall meaning, just I want to try another shell. it's so far so good. maybe, zsh is gonna be my default shell.
I found a little bug a softwere, so I reasearched where is cause and I could find it. so I wrote a little patch and sent bug report with patch. that project use sourceforge, but I didn't have account so I create account also I have sourcefoge.jp's account. actully I didn't have to create account. I wanted sourceforge.net's account.