Patch: StringBuffer fixes

[Tom Tromey]

Bryce> I checked in the following patch to both libgcj and
Bryce> classpath. It fixes a few problems I noticed with the new,
Bryce> merged implementation, including the delete() bug reported by
Bryce> <MSlattery@searchsoft.net>.

Thanks Bryce.

Bryce> I also checked a small regression test (attached) in to the
Bryce> libgcj testsuite.

Thanks.  Tests like this one, which test a library class in a
relatively modular way, should probably go in Mauve.  I can set you up
with access there if you want.

Tom