Becoming one line

[quantrpeter]

I try to format this file:

grammar Hello;

r : 'hello' ID;

ID    : [a-z]+ ;
WS  : [ \t\r\n]+ -> skip ;

It become one line:

/Users/peter/workspace/antlr-formatter/src/test/resources/hk/quantr/antlrformatter>java -jar ~/workspace/codebuff/target/codebuff-1.5.1.jar -g org.antlr.codebuff.ANTLRv4        -rule grammarSpec        -corpus corpus/antlr4/training        -files g4        -indent 4        -comment LINE_COMMENT Hello.g4
grammar Hello;r:'hello'ID;ID:[a-z]+;WS:[ \t\r\n]+->skip;

[parrt]

all depends on training