Fix crankturn problem with CVS import code where it used a sed command that assumes GNU sed.  Now it will work with old versions of sed as well.
Fix crankturn problem with CVS import code where it used a sed command
that assumes GNU sed.  Now it will work with old versions of sed as well.

bk: 40b38317yQhIxF_lv1r-nBWxXw_tBQ
bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper