Use hex value for incrementing magic for RabinKarp.
Use hex value for incrementing magic for RabinKarp.

librsync/librsync,sourcefrog/librsync,librsync/librsync,sourcefrog/librsync,librsync/librsync,dbaarda/librsync,sourcefrog/librsync,sourcefrog/librsync,dbaarda/librsync,dbaarda/librsync,dbaarda/librsync,librsync/librsync