line comments with -- cancel further formatting

[PabloRMira]

Describe the bug

Line comments with -- instead of /* */ cancel further formatting

To Reproduce

After applying sql-formatter on the following query

select asdf,
-- some comment
qwer,
qwer2
from table1

we obtain

SELECT asdf
       -- some comment
qwer,
qwer2
from   table1;

Expected behavior

SELECT asdf
       -- some comment
       qwer,
       qwer2
FROM   table1;