deleting some empty lines with sed

[David W. Tamkin]

barnett at crdgw1.ge.com wrote in <BARNETT.91May3125128 at grymoire.crd.ge.com>:

| No one mentioned uniq(1) as a possible solution. Of course it isn't a
| good idea if you have identical consecutive non-empty lines....

Nor is it a good idea if the consecutive blank lines are not identical
because they have different combinations of spaces and tabs.  If all the
blank lines are truly empty, then this isn't an additional problem, though
Bruce Barnett's original caveat (above) still stands.

David Tamkin  Box 7002  Des Plaines IL  60018-7002  708 518 6769  312 693 0591
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