[backport] [scaladoc] Changed align of example code to Option.contains and Option.collect methods.
[backport] [scaladoc] Changed align of example code to Option.contains and Option.collect methods.

(cherry picked from commit e3311073bbad6f6f0dfdd3ea09628d324b4b3614)

slothspot/scala,slothspot/scala,felixmulder/scala,martijnhoekstra/scala,felixmulder/scala,lrytz/scala,shimib/scala,martijnhoekstra/scala,slothspot/scala,martijnhoekstra/scala,jvican/scala,lrytz/scala,shimib/scala,shimib/scala,martijnhoekstra/scala,scala/scala,shimib/scala,jvican/scala,lrytz/scala,scala/scala,jvican/scala,lrytz/scala,jvican/scala,slothspot/scala,scala/scala,shimib/scala,martijnhoekstra/scala,felixmulder/scala,slothspot/scala,slothspot/scala,felixmulder/scala,scala/scala,lrytz/scala,jvican/scala,felixmulder/scala,scala/scala,shimib/scala,martijnhoekstra/scala,felixmulder/scala,slothspot/scala,jvican/scala,lrytz/scala,jvican/scala,scala/scala,felixmulder/scala