patch for presumed typo in boehm-gc/misc.c

[Tom Tromey]

>>>>> "Per" == Per Bothner <per@bothner.com> writes:

Per> The gcc3 branch fails to build because the symbol
Per> GC_lear_stack_inner is missing.  I'm assuming it's a typo. Ok to
Per> check in?

Yeah.
We'll probably need the patch on the trunk too.

This is bothersome because I know I did `make check' in the boehm-gc
build directory after applying yesterday's patch.  I must have screwed
up somehow.  Sorry about that.

Tom