The .KEEP command allows you to keep blank lines that are present
in the input file, in the output file when .NO FILL is in effect.
Normally, multiple blank lines in the input file are discarded
in the output file while .NO FILL is in effect. .NO KEEP also
discards blank lines when .NO FILL is in effect. (See also
.LITERAL.)
Formats
.KEEP
.NO KEEP
Abreviated formats
.K
.NK
Default