mimifying code deso not leave blanks in all the right places

[m-tyler]

On case statements, the keyword then has surrounding spaces removed.
"values case when 12 <> 4 then 'A' else 'B' end" becomes "values case when 12<>4then'A'else'B'end". Its odd that "case when FIELD = 'Y" then -1 else 1 end becomes "case when FIELD='Y'then-1 else 1 end" seems to be okay.

A similar issue exists with date/time calculations,"values DATE_FIELD -6 days" becomes "values DATE_FIELD-6days"

Issues with an IBM i DB2 system.