Reserved delimiter characters are included in URL links

```
5.7.4
Python 3.7.2 (default, Jan 13 2019, 12:50:01)
```

**To reproduce:**
```python
print("See https://example.com, this url")
```

**Expected:**
link `https://example.com`. URL reserved delimiter chars at end are ignored

**Actual**
the delimiting comma is included in the link:
`https://example.com,/`

Start by reproducing the example in a Jupyter Notebook and inspect the notebook's URL-link rendering path. Verify the behavior with a URL followed by a comma; done means the rendered link ends at example.com and excludes the reserved delimiter character.

Written by the indexing model from the issue text.