Bug: deletion of blank lines

[Russell Wallace]

Under some circumstances Indent is deleting blank lines even when
instructed otherwise with -nsob.  The following source file:

main() {
        if (1) {
        }

        //
        if (1) {
        }
}

has the blank line deleted by Indent 2.2.10 under Windows 7 with the
following options file:

-T list
-T map
-T term
-T term_float
-T term_int
-br
-brf
-ce
-i4
-il-4
-l128
-ncs
-nlp
-npcs
-npsl
-nsob
-ss
-ts4