[patch] disappearing corethreads.{exp,c} in in-tree build

[Tom Tromey]

>>>>> "Matt" == Matt Rice <ratmice@gmail.com> writes:

Matt> 2011-07-21  Matt Rice  <ratmice@gmail.com>
Matt>         * gdb.threads/Makefile.in: Avoid globbing corethreads.exp
Matt>         in mostlyclean rule.  Add files ending in .core.

Ok.

Tom