springboot Unnecessary use of / in classpath:/db/changelog/db.changelog-master.yaml prevents Liquibase from identifying that a change set has already been applied when run from the command line

Forward port of issue #19926 to 2.2.5.

Comment From: wilkinsona

Re-opening as we may need to revert this change. See https://github.com/spring-projects/spring-boot/pull/19926#issuecomment-586142069 for details.

Comment From: snicoll

See https://github.com/spring-projects/spring-boot/pull/19926#issuecomment-586172784