Normally, the print() function in the mongo shell automatically newline-terminates the string:

> print('a'); print('b')
a
b
> print('a\n'); print('b\n')
a
b
> print('a\n\n'); print('b\n\n')
a

b

>

We should do the same thing when we capture the output for the query_golden_* suites. This will ensure the expected-output files are EOL-terminated.