[Fedora-packaging] Error in PREUN scriptlet in rpm package.

["Jóhann B. Guðmundsson"]

When updating a package I came across this "Error in PREUN scriptlet in 
rpm package".

Now further inspection revealed that there was a misplaced semicolon in 
%preun section of the relevant spec file.

Easily fixable but what is the proper procedure to fix this via update 
without having the user having to go to a terminal and run rpm -e 
--noscripts $oldpackage to remove the old package?

JBG