[Outcome printer] Remove extra whitespace after comma (#1858)
[Outcome printer] Remove extra whitespace after comma (#1858)

print_typlist already adds a space after it.
This prints `foo('a, 'b)` instead of `foo('a,  'b)`
cristianoc/reason,cristianoc/reason,facebook/reason,chenglou/reason,chenglou/reason,let-def/reason,let-def/reason,cristianoc/reason,let-def/reason,facebook/reason,chenglou/reason,facebook/reason