ACCUMULO-2852: use Cwd, since we're using Cwd. also change usage text to match new executable name
ACCUMULO-2852: use Cwd, since we're using Cwd. also change usage text to match new executable name

Signed-off-by: Josh Elser <08e628f9d7ca1b20fe79ef383bd8c50d12051375@apache.org>

phrocker/accumulo-1,phrocker/accumulo,phrocker/accumulo,milleruntime/accumulo,ivakegg/accumulo,adamjshook/accumulo,mikewalch/accumulo,keith-turner/accumulo,mjwall/accumulo,mjwall/accumulo,milleruntime/accumulo,keith-turner/accumulo,milleruntime/accumulo,adamjshook/accumulo,lstav/accumulo,dhutchis/accumulo,mikewalch/accumulo,mjwall/accumulo,apache/accumulo,phrocker/accumulo,apache/accumulo,phrocker/accumulo-1,ctubbsii/accumulo,milleruntime/accumulo,apache/accumulo,ivakegg/accumulo,lstav/accumulo,ivakegg/accumulo,mikewalch/accumulo,keith-turner/accumulo,dhutchis/accumulo,mjwall/accumulo,mikewalch/accumulo,apache/accumulo,ivakegg/accumulo,adamjshook/accumulo,phrocker/accumulo,apache/accumulo,adamjshook/accumulo,mjwall/accumulo,phrocker/accumulo,dhutchis/accumulo,keith-turner/accumulo,milleruntime/accumulo,adamjshook/accumulo,mikewalch/accumulo,lstav/accumulo,phrocker/accumulo,mikewalch/accumulo,apache/accumulo,ivakegg/accumulo,phrocker/accumulo-1,milleruntime/accumulo,mjwall/accumulo,dhutchis/accumulo,apache/accumulo,adamjshook/accumulo,keith-turner/accumulo,dhutchis/accumulo,mikewalch/accumulo,ctubbsii/accumulo,keith-turner/accumulo,adamjshook/accumulo,lstav/accumulo,ctubbsii/accumulo,dhutchis/accumulo,phrocker/accumulo,phrocker/accumulo,lstav/accumulo,phrocker/accumulo-1,dhutchis/accumulo,phrocker/accumulo-1,ctubbsii/accumulo,mjwall/accumulo,dhutchis/accumulo,ivakegg/accumulo,phrocker/accumulo,ctubbsii/accumulo,ivakegg/accumulo,lstav/accumulo,adamjshook/accumulo,phrocker/accumulo-1,adamjshook/accumulo,milleruntime/accumulo,phrocker/accumulo-1,dhutchis/accumulo,ctubbsii/accumulo,ctubbsii/accumulo,keith-turner/accumulo,mikewalch/accumulo,lstav/accumulo