Illegal/accidental use of the "/" character is not checked
in the Version: tag (and possibly others) when RPM reads the
spec file, causing it to fail later in the build process.
Should be changed to check just like "-" is already checked
The current design of rpm says
Everything but '-' is permitted in version/release.
even though, as we both know, certain characters like "%/$:.! \t\r\n" are
bound to produce surprises when version is evaluated in different contexts.
Without a more explicit definition of what is permitted in version/release,
it's impossible to implement a better check than is what already implemented.