figure out singular/plural issues with roll-up advisory

[Frederik Braun]

I just ran into a case where I had just one bug listed for the roll-up advisory. Now I wonder if this should turn plurals "Mozilla developers and community members" into singular, or if I should just avoid having only one bug listed in the roll-up advisory and making sure I either get more into the roll-up or avoid the roll-up alltogether for cases like this one.