<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _crop_list_to_size(l, size):
 """Make a list a certain size"""

    for x in range(size - len(l)):
        l.append(False)
    for x in range(len(l) - size):
        l.pop()
    return l