Fix extraneous white space in generated sql

Fix extraneous white space in generated sql

- trailing space when comment is not declared for a db table
- spaces before arguments that don't exist
- extra lines

Schema.tpl whitespace overhaul

Note I tried regenerating civicrm.mysql with this & it looked good - jenkins can
pass judgement too...

I also tried regenerating the sql in search_kit but I hit what seems to me to be
an unreleated regression - ie search_kit generates
 ROW_FORMAT=DYNAMIC

With my version (lastest from master) of civix I get ENGINE = INNODB but
not the ROW_FORMAT