Correct file name in case of space in the name

Some files have a space in the name ( :-( ) and therefore the filename for the file command should be between quotes.

Author: albert-github

lib/Doxygen/Filter/Perl.pm

@@ -521,7 +521,7 @@ sub _PrintFilenameBlock
 
     if (defined $self->{'_hData'}->{'filename'}->{'fullpath'})
     {
-        print "/** \@file $self->{'_hData'}->{'filename'}->{'fullpath'}\n";
+        print "/** \@file \"$self->{'_hData'}->{'filename'}->{'fullpath'}\"\n";
         if (defined $self->{'_hData'}->{'filename'}->{'details'}) { print "$self->{'_hData'}->{'filename'}->{'details'}\n"; }
         if (defined $self->{'_hData'}->{'filename'}->{'version'}) { print "\@version $self->{'_hData'}->{'filename'}->{'version'}\n"; }
         print "*/\n";