Fix regex to cover '1 commit result' case

[Yikun]

Current regex doesn't cover '1 commit result' case, that means if we
get only 1 commit result, the dependent number will be set to 0.

This patch try to fix it by use '* commit result' to match 'n commit results'
and '1 commit result' case.

[Yikun]

Notes for reviewer:

regex_old=b'.*[^0-9,]([0-9,]+).*commit results'
regex_new=b'.*[^0-9,]([0-9,]+).*commit result'

# the old regex can't match 1 commit result
>>> re.compile(regex_old).match(b'<p>100 commit results</p>').group(1)
b'100'
>>> re.compile(regex_old).match(b'<p>1 commit result</p>').group(1)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'NoneType' object has no attribute 'group'

# the new regext can match 1 commit result and n commit results
>>> re.compile(regex_new).match(b'<p>100 commit results</p>').group(1)
b'100'
>>> re.compile(regex_new).match(b'<p>1 commit result</p>').group(1)
b'1'

case snapshot:

[1] https://github.com/search?q=kunpengcompute%2Fkunpeng&type=commits