salt-cubicweb-formula #5341013 allow unspecified config variables in pillars [done]

If cubicweb config has a default value for some option, we should not be forced to specify it in the pillar.

For instance, db-host or db-port have a default value

prioritynormal
typeenhancement
done in0.1.0
load0.250
load left0.000
closed by#5583ce316f3f allow unspecified config variables in pillars (closes #5341013)
patchallow unspecified config variables in pillars (closes #5341013) [applied]