Attempt to keep formatting of sample commands.

[ansyeow]

http://docs.spring.io/autorepo/docs/spring-security/4.1.0.RC1/apidocs/org/springframework/security/web/header/writers/HpkpHeaderWriter.html
-- Output of current javadoc.

[rwinch]

Thanks for the PR! I'm guessing you closed this to fix the javadoc errors on the Travis build?

[ansyeow]

Hi Rob,
Yeah. And also my branch name was named meaningfully. :D

[rwinch]

@ansyeow Thanks! Looking forward to the updates :)

PS: We have an open issue to allow javadoc errors to be more visible (but not display warnings). You can temporarily enable logging for javadoc by deleting these two lines:

spring-security/gradle/javaprojects.gradle

Line 195 in a5a5d9a

outputLevel = org.gradle.external.javadoc.JavadocOutputLevel.QUIET

spring-security/gradle/javaprojects.gradle

Line 218 in a5a5d9a

addStringOption('-quiet')

We can't do this is master because that outputs too much to the console and it makes Travis builds fail (they have a limit on the amount written to the console).