addcr - add a CR before each LF

       Some vendors ship unix2dos or bsd2dos tools similar to addcr.  Those tools often blow up  on  long  lines
       and nulls.  addcr has no trouble with long lines and nulls.

addcr  inserts  CR at the end of each line of input.  It does not insert CR at the end of a partial final
       line.

       addcr - add a CR before each LF

delcr(1), fixcr(1)

                                                                                                        addcr(1)

addcr