changing cscope's default editor

mkdir -p ~/.vim/plugin
create ~/.vim/plugin/cscope_maps.vim

export EDITOR=vim

cscope

Reference:
http://cscope.sourceforge.net/cscope_man_page.html
http://cscope.sourceforge.net/cscope_vim_tutorial.html
http://osr507doc.sco.com/en/tools/CPPT_cscope_ConfigEnv.html