One or more directories are not included within this
package and/or its sub-packages:

=> 1:net-snmp-5.4.2-3.fc10.i386 (rawhide-development-i386)
/usr/share/snmp
/etc/snmp

=> 1:net-snmp-libs-5.4.2-3.fc10.i386 (rawhide-development-i386)
/usr/share/snmp

=> 1:net-snmp-perl-5.4.2-3.fc10.i386 (rawhide-development-i386)
/usr/share/snmp

Note: It may be necessary to include %_datadir/snmp in more than one
package.

[...]

Further information:

https://fedoraproject.org/wiki/Packaging/ReviewGuidelines

MUST: A package must own all directories that it creates. If it does not
create a directory that it uses, then it should require a package which
does create that directory.

https://fedoraproject.org/wiki/Packaging/Guidelines#FileAndDirectoryOwnership
https://fedoraproject.org/wiki/Packaging/UnownedDirectories