c:\@Work\Perl>perl -wMstrict -le
"print qq{perl version $]};
 ;;
 my $rx = qr{ ^ \< \ReportHost> }xms;
 print $rx;
"
perl version 5.010001
(?msx-i: ^ \< \ReportHost> )


c:\@Work\Perl>perl -wMstrict -le
"print qq{perl version $]};
 ;;
 my $rx = qr{ ^ \< \ReportHost> }xms;
 print $rx;
"
Unrecognized escape \R passed through at -e line 1.
perl version 5.008009
(?msx-i: ^ < ReportHost> )