[MINOR] Fix code style for if/for/while statements

[exmy]

What changes were proposed in this pull request?

Find some code style issues for if/for/while statements

Why are the changes needed?

Fix code style for if/for/while statements

Does this PR introduce any user-facing change?

No

How was this patch tested?

N.A

Was this patch authored or co-authored using generative AI tooling?

No

[MaxGekk]

As you are here, may I ask you to fix other places:

find . -name "*.scala" -print0|xargs -0 grep ' if('|wc -l
      39

[exmy]

As you are here, may I ask you to fix other places:

find . -name "*.scala" -print0|xargs -0 grep ' if('|wc -l
      39

Sure, I've fixed the if style issue except if(isnull(fromExp), null, false) in sql, as well as for/while style issue.

[MaxGekk]

+1, LGTM. Merging to master.
Thank you, @exmy.