* The Copyright:, Packager:, Vendor: and PreReq: tags MUST NOT be used.
* The BuildRoot: tag and %clean section SHOULD NOT be used.
* The contents of the buildroot SHOULD NOT be removed in the first line
of %install.
* The Summary: tag value SHOULD NOT end in a period.
* The Source: tags document where to find the upstream sources for the
package. In most cases this SHOULD be a complete URL to the upstream
tarball. For special cases, please see the SourceURL Guidelines.
* The Group: tag is unnecessary.