test/p2p/fast_sync: use --pex on restart

test/p2p/fast_sync/test_peer.sh

@@ -27,7 +27,7 @@ SEEDS="$(test/p2p/ip.sh 1):46656"
 for j in `seq 2 $N`; do
 	SEEDS="$SEEDS,$(test/p2p/ip.sh $j):46656"
 done
-bash test/p2p/peer.sh $DOCKER_IMAGE $NETWORK_NAME $ID $PROXY_APP "--seeds $SEEDS"
+bash test/p2p/peer.sh $DOCKER_IMAGE $NETWORK_NAME $ID $PROXY_APP "--seeds $SEEDS --pex"
 
 # wait for peer to sync and check the app hash
 bash test/p2p/client.sh $DOCKER_IMAGE $NETWORK_NAME fs_$ID "test/p2p/fast_sync/check_peer.sh $ID"

test/p2p/pex/test.sh

@@ -14,7 +14,7 @@ echo "(assuming peers are started with pex enabled)"
 
 echo "1. restart peer $ID"
 docker stop "local_testnet_$ID"
-# preserce addrbook.json
+# preserve addrbook.json
 docker cp "local_testnet_$ID:/go/src/github.com/tendermint/tendermint/test/p2p/data/mach1/core/addrbook.json" "/tmp/addrbook.json"
 docker rm -vf "local_testnet_$ID"