__wt_lsm_manager_free_work_unit doesn't return an error, and its callers
don't check, switch to void, minor KNF.
whitespace
__wt_lsm_free_chunks() and __wt_lsm_bloom_work() can both fail and
return an error.
A few more minor lint/KNF tool complaints.
Initialize entry, lint thinks it might be used uninitialized in an error
path. (I don't see it, I think lint's wrong, but paranoia now might keep
us from getting in trouble after some future change.)
whitespace