assume that these are part of some internal structure of something
that, in general looks like
(#:x 1 #:y 2 #:z 3)
and so prefer to indent like this:
(#:x 1
#:y 2
#:z 3)
instead of like this:
(#:x 1
#:y 2
#:z 3)
special indentation
(this could only come about if the regexp specification in the prefernces
matched (the printed out) version of strings, so it wouldn't happen with
the default preferences)
