Add newline at EOF as required by HAProxy

Without a newline at the end of the file, HAProxy fails
with the error:
"Missing LF on last line, file might have been truncated at position 87"

Change-Id: I6b3c4917c87649abe702b43cceb31a2191352f28

setup_local_env/haproxy-config/haproxy.cfg

diff --git a/setup_local_env/haproxy-config/haproxy.cfg b/setup_local_env/haproxy-config/haproxy.cfg
index 94b22d8..de4f709 100644
--- a/setup_local_env/haproxy-config/haproxy.cfg
+++ b/setup_local_env/haproxy-config/haproxy.cfg
@@ -65,4 +65,5 @@
     timeout connect 10s
     timeout server 5m
     server ssh_node1 $HA_GERRIT_SITE1_HOSTNAME:$HA_GERRIT_SITE1_SSHD_PORT check inter 10s check port $HA_GERRIT_SITE1_HTTPD_PORT inter 10s
-    server ssh_node2 $HA_GERRIT_SITE2_HOSTNAME:$HA_GERRIT_SITE2_SSHD_PORT check inter 10s check port $HA_GERRIT_SITE2_HTTPD_PORT inter 10s backup
\ No newline at end of file
+    server ssh_node2 $HA_GERRIT_SITE2_HOSTNAME:$HA_GERRIT_SITE2_SSHD_PORT check inter 10s check port $HA_GERRIT_SITE2_HTTPD_PORT inter 10s backup
+