[Weibo] Incorrectly believes username is uid

[bog4t]

When trying to download weibo.com/24719725, weibo downloader thinks that 24719725 is the uid rather than the username:

E:\dls\gallery-dl>gallery-dl -i "E:\dls\gallery-dl\jobs\weibo.txt"
[1/17] weibo.com/24719725
[weibo][info] No results for https://weibo.com/u/24719725?tabtype=feed

For reference, weibo.com/u/1886633831 would be a link that contains the account's actual uid.

[mikf]

Fixed in 6b6bb4b, unless that breaks something else.

$ gallery-dl weibo.com/24719725
/tmp/_/weibo/九酱子太胖了/4771147272690791_01.jpg
/tmp/_/weibo/九酱子太胖了/4771147272690791_02.jpg
/tmp/_/weibo/九酱子太胖了/4771147272690791_03.jpg
/tmp/_/weibo/九酱子太胖了/4771147272690791_04.jpg
/tmp/_/weibo/九酱子太胖了/4901376877137620_01.jpg
/tmp/_/weibo/九酱子太胖了/4901338019791425_01.jpg^C