[JAVA] /bin/sh portability issues in gen-classlist.sh.in

[Andrew Haley]

Roger Sayle writes:
 > 
 > I'm happy to repost them to the classpatch-patches list if that's
 > required.  But the original postings can be found at:
 > 
 > http://gcc.gnu.org/ml/gcc-patches/2006-07/msg00293.html
 > http://gcc.gnu.org/ml/gcc-patches/2006-07/msg00294.html
 > 
 > Sorry for the inconvenience,

Hey, no need to apologize!  You are much appreciated for your work.

Andrew.