| .* Malformed environment modification specifier: 'HI' | |
| .* Expected MYVAR=OP:VALUE | |
| .* Malformed environment modification specifier: 'INVALID=SETTING' | |
| .* Expected MYVAR=OP:VALUE | |
| .* Malformed environment modification specifier: 'INVALID=OP1:operation:10' | |
| .* Expected MYVAR=OP:VALUE |