playlist_index raises IndexError if there are less items in playlist than given parameter.

[muraty]

• I've verified and I assure that I'm running youtube-dl 2017.10.01
• Bug report (encountered problems with youtube-dl)
• Searched the bugtracker for similar issues including closed ones
• At least skimmed through the README, most notably the FAQ and BUGS sections

I assume that, when I set playlist-items to '1-100', youtube-dl should download first 100 items -if exists of course-. But if there are less items in the playlist than given interval, youtube-dl raises IndexError. I think, there should be a parameter for 'download max 100 items' or playlist-items should behave like this.

Youtube-dl version: 2017.10.01
Playlist URL: https://www.youtube.com/watch?v=qEkj2c1HCJs&list=PLbIzmw8qvgXRPK9ozTWhHfyzFvG8fN-Qz

Python Code:

import youtube_dl

# There are 24 items in the list when this issue is created.
url = 'https://www.youtube.com/watch?v=qEkj2c1HCJs&list=PLbIzmw8qvgXRPK9ozTWhHfyzFvG8fN-Qz'

ydl = youtube_dl.YoutubeDL({'format': 'best',
                            'noplaylist': False,
                            'skip_download': False,
                            'playlist_items': '1-100',
                            'ignoreerros': True})
ydl.download([url])

Error:

[youtube:playlist] Downloading playlist PLbIzmw8qvgXRPK9ozTWhHfyzFvG8fN-Qz - add --no-playlist to just download video qEkj2c1HCJs
[youtube:playlist] PLbIzmw8qvgXRPK9ozTWhHfyzFvG8fN-Qz: Downloading webpage
[download] Downloading playlist: Amansız Övücüler
Traceback (most recent call last):
  File "<stdin>", line 11, in <module>
  File "/home/ubuntu/.virtualenvs/putio/lib/python3.5/site-packages/youtube_dl/YoutubeDL.py", line 1974, in download
    url, force_generic_extractor=self.params.get('force_generic_extractor', False))
  File "/home/ubuntu/.virtualenvs/putio/lib/python3.5/site-packages/youtube_dl/YoutubeDL.py", line 794, in extract_info
    return self.process_ie_result(ie_result, download, extra_info)
  File "/home/ubuntu/.virtualenvs/putio/lib/python3.5/site-packages/youtube_dl/YoutubeDL.py", line 943, in process_ie_result
    entries = [entry_list[i - 1] for i in playlistitems]
  File "/home/ubuntu/.virtualenvs/putio/lib/python3.5/site-packages/youtube_dl/YoutubeDL.py", line 943, in <listcomp>
    entries = [entry_list[i - 1] for i in playlistitems]
IndexError: list index out of range
list index out of range

Is there any parameter for this issue? If not so, you can assign this issue to me.