Newline character inserted to input/output fields in function builder

[Daniel-Valentine]

After saving a function, the function builder appears to insert a newline character to the end of the input/output test fields. If I'm not careful enough with how I take types into consideration, this can cause the function to fail execution.

For example, here's a python script to calculate the n-th Fibonacci number, with rudimentary input controlling to ensure that the input is only 1 number in size:

import sys

# only accept 1 argument
if len(sys.argv) > 2:
    raise Error

i = int(sys.argv[1])

f0 = 0
f1 = 1
ft = 0

while i > 0:
    i -= 1
    ft = f0 + f1
    f0 = f1
    f1 = ft

print ft

It works fine in the function builder...

...but once I save it, Clotho will claim that the function failed, and opening up the function shows that a newline character was inserted (the same holds true for the output field as well)