Add no cover comment for python 3.8.1
@@ -1721,7 +1721,7 @@ def _find_if_else_block(tokens, i):
def _find_elif(tokens, i):
# type: (List[Token], int) -> int
- while tokens[i].src != 'elif':
+ while tokens[i].src != 'elif': # pragma: no cover (only for <3.8.1)
i -= 1
return i
