httrack @3.45.3 install returns Error: reinplace: sed: RE error: illegal byte sequence

[calle.kabo@…]

$ sudo port install httrack
--->  Computing dependencies for httrack
--->  Fetching archive for httrack
--->  Attempting to fetch httrack-3.45.3_0.darwin_12.x86_64.tbz2 from http://packages.macports.org/httrack
--->  Fetching distfiles for httrack
--->  Attempting to fetch httrack-3.45.3.tar.gz from http://lil.fr.distfiles.macports.org/httrack
--->  Verifying checksum(s) for httrack
--->  Extracting httrack
--->  Applying patches to httrack
Error: reinplace: sed: RE error: illegal byte sequence
Error: org.macports.patch for port httrack returned: reinplace sed(1) failed
Please see the log file for port httrack for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_ports_net_httrack/httrack/main.log
To report a bug, follow the instructions in the guide:
    http://guide.macports.org/#project.tickets
Error: Processing of port httrack failed

Using Mountain Lion with Xcode 4.4. Other ports work fine.

[ryandesign (Ryan Carsten Schmidt)]

r96201