Ignore CRLF '\r' thing

If you get errors like

bash: $'\r': command not found
bash: $'\r': command not found
bash: $'\r': command not found
bash: eval: line 12: syntax error near unexpected token `$'{\r''
'ash: eval: line 12: `__add_sys_prefix_to_path() {
bash: $'\r': command not found
bash: $'\r': command not found

You need to:

export SHELLOPTS
set -o igncr