It is my job to maintain perl code. I tracked down this interesting "bug". Can someone explain what's wrong with the outdented line? 
Code:

      print "Before fubar\n" . Dumper(@g::TaskList);
      
   $Body .= "$_<br>" while(<LOG>);

      print "After fubar\n" . Dumper(@g::TaskList);

Output:

  Before fubar
  $VAR1 = 'Localize';
  $VAR2 = 'ErrorCheck';

  After fubar
  $VAR1 = undef;
  $VAR2 = 'ErrorCheck';

[download]
Note that the following replacement code (explicit to the max) works without incident. Why are the two not identical? Programming Perl/3e, pg. 81 claims that the first line should work. So, what gives?: 
Working (identical?) version:

   while (my $line = <LOG>)
   {
      $Body .= "${line}<br>";
   }

[download]
Also, a check of the memory locations of $Body and @g::TaskList showed them to be "miles" apart, and not altered by the code, in case you were curious. Thanks muchly for any insight.

In reply to Side Effects by goodgulf

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