DdlDetectPostgres detection is fragile

[froque]

ebean-ddl-runner/src/main/java/io/ebean/ddlrunner/DdlDetectPostgres.java

Line 10 in c02995d

private static final Pattern IX_CONCURRENTLY = Pattern.compile(Pattern.quote(" index concurrently "), Pattern.CASE_INSENSITIVE);

This is detected as non-transactional:
create index concurrently ix_acl_container_relation_container_id on acl_container_relation (container_id);

This is detected as transactional (extra space):
create index concurrently ix_acl_container_relation_container_id on acl_container_relation (container_id);

It could also contain multiple new lines between index and concurrently