For example when the code looks like this:
if (a != b) {
return;
}
it should be turned into:
if (a != b) {
return;
}
Same applies to switches:
switch (character) {
it should be turned into:
switch (character) {
I was suggested to open this feature request here: https://github.com/arduino/Arduino/issues/10326
Please check the new release 3.3, it has a new option --squeeze-ws which can be used to remove whitespace.