Merge branch 'ralf/default' into 'master'

Remove the `default` notation for options

See merge request robbertkrebbers/coq-stdpp!31
7 jobs for master in 14 minutes and 57 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #12509
fp
build-coq.8.6.0

00:03:00

passed #12508
fp
build-coq.8.6.1

00:03:36

passed #12507
fp
build-coq.8.7.0

00:03:11

passed #12506
fp
build-coq.8.7.1

00:02:41

passed #12505
fp-timing
build-coq.8.7.2

00:02:45

passed #12504
fp
build-coq.8.8.0

00:02:40

passed #12503
fp
build-coq.dev

00:14:56