The version 2.0.4 that I downloaded today has identical to 2.0.3 sh script BUT it has DOS style end of line markers. Running it on linux fails with:
liquibase
bash: liquibase: /bin/sh^M: bad interpreter: No such file or directory
For now the solution is either to use 2.0.3 script with 2.0.4 version or use dos2unix to convert to unix format.