+ # Compare "if" expression and free'd expression,
+ # without regard to white space.
+ (my $e1 = $2) =~ tr/ \t//d;
+ my $e2 = defined $3 ? $3 : $4;
+ $e2 =~ tr/ \t//d;
+ if ($e1 eq $e2)
+ {
+ $found_match = 1;
+ $list
+ and (print "$file\0"), next FILE;
+ print "$file: $1\n";
+ }