One way: 
use warnings;
use strict;

while (<DATA>) {
    chomp;
    my $len = length;
    $_ .= ' ' x (76 - $len) if $len < 76;
    print "$_\n";
}

__DATA__
hfgjjasdgasdhgfask
jhagfghfjkhsdg
fjhsdfj
fsf

[download]

In reply to Re: Trailing spaces to lines less than x characters by toolic
in thread Trailing spaces to lines less than x characters by mlsmit10

Title:
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