The spec file has seen tabs versus spaces fixes a number of times now.
In 096bf89 (2.0.0, 2021-06-03), the spec file was rewritten and all
spaces were replaced with tabs in the tags. Previous fixes included:
- dbfdbf0 (Fix mixed-use-of-spaces-and-tabs warning (in this spec
file), 2018-06-17)
- c74c9bf (Fix mixed-use-of-spaces-and-tabs warning, 2018-05-03)
- 85118ac (... Keep consistent between spaces and tabs, 2005-03-04)
Replace tabs once again as they are not commonly used in spec files and
lead to rpmlint warnings. If we cannot avoid such warnings here, it's a
bit silly to expect others to do so.