[Bug] Some space out of range strip when using -l argument.

[EeyoreLee]

def do_something():
    xs = []
    for x in xs:
        y = 'y'
        
        if y:
            pass

def do_something_else():
    return '-path 1'

the line 5 (one-based) has 8 spaces or 2 tabs. they are strip when I run yapf -l 10-10 xx.py -i or cat xx.py | yapf -l 10-10. line 10 is the last line.

[EeyoreLee]

Related issue vscode-extension-yapf #101 and #613

[EeyoreLee]

Seems there's already a PR to fix it, could we merge it if it can address this issue after code review. #1102