ошибка sed при запуске терминала в OS X

Я получаю эти сообщения об ошибках при запуске bash или zsh в стандартном терминале.app или iTerm2

sed: 1: "#^system_type=# { s#^s ...": extra characters at the end of p command
sed: 1: "#^system_type=# { s#^s ...": extra characters at the end of p command
sed: 1: "#^system_name=# { s#^s ...": extra characters at the end of p command
sed: 1: "#^system_name=# { s#^s ...": extra characters at the end of p command
sed: 1: "#^system_name_lowercas ...": extra characters at the end of p command
sed: 1: "#^system_name_lowercas ...": extra characters at the end of p command
sed: 1: "#^system_version=# { s ...": extra characters at the end of p command
sed: 1: "#^system_version=# { s ...": extra characters at the end of p command
sed: 1: "#^system_arch=# { s#^s ...": extra characters at the end of p command
sed: 1: "#^system_arch=# { s#^s ...": extra characters at the end of p command

Как я могу это исправить?