Handle sysconfig files without empty line after "Path"

[tacerus]

The security-formula (with the help of the sysconfig-formula) will add a header to /etc/sysconfig/security, but upon the next execution of fillup, another "Description" block is inserted:

# truncate -s0 /etc/sysconfig/security
# /bin/fillup -q /etc/sysconfig/security /usr/share/fillup-templates/sysconfig.security
# salt-call state.apply security
...
# cp /etc/sysconfig/security /tmp/security.salt
# /bin/fillup -q /etc/sysconfig/security /usr/share/fillup-templates/sysconfig.security
# cp /etc/sysconfig/security /tmp/security.salt.fillup
# diff /tmp/security.salt{,.fillup}
1a2,4
> ## Description: Configuration of permissions on the system
> ## Type:        string
> ## Default:     "easy local"

I presume this is because the fillup template at /usr/share/fillup-templates/sysconfig.security does not have an empty line after "Path", making fillup consider "Path" and "Description" to belong to the same block.

Effectively this causes ping-pong between Salt and fillup upon package updates.

My first idea was to patch the fillup template, however on a short glance at /usr/share/fillup-templates/sysconfig.* there is no real consistency with the "Path" lines, the "security" template is just one candidate.

A workaround would be to add logic which silently stops header insertion if a sysconfig file which cannot be managed without conflicts with fillup is passed.