A lot of editors do smart indents so if you add a blank line in the middle of a function it inherits the indentation of the line above. e.g.

1: func() 2: { 3: ....int j = 3; 4: .... 5: ....AnotherFunc(j);...... 6: }

Line 4 is OK Line 5 has trailing whitespace after the function call.

I'd like to see an option to suppress discarding trailing whitespace on lines which contain only whitespace.