The pan-diffraction meta package "Suggests: nebula" despite
pan-diffraction seems about something with scientific imaging while
Debian's nebula package is a software defined network, see
https://www.defined.net/nebula.

I suspect a different "nebula" was meant. I just have no idea which
one:

* OpenNebula seems to be about VMs and containerisation, see
https://opennebula.io/.

* The EPEL (RPM) package named "nebula" is an "Intrusion signature
  generator" (homepage dead, the domain is up for sale), i.e. also more
  sysadmin stuff than scientific imaging.

Also found no package with "nebula" in the package name in the WNPP
list. (I checked it by calling "wnpp-check nebula".)

So maybe it's just the best to just remove that "Suggests"
completely. (Or figure out which package was really meant.)

P.S.: Noticed this by chance while having had a look at Debian's nebula
package.

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