full_install_osm.sh: minor fix in dump_vars

Change-Id: If2bef42df8b2fe8765c54164410ec86e8ecd7a69
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/installers/full_install_osm.sh b/installers/full_install_osm.sh
index ababda5..f69d4c1 100755
--- a/installers/full_install_osm.sh
+++ b/installers/full_install_osm.sh
@@ -1548,7 +1548,7 @@
     echo "NO_HOST_PORTS=$NO_HOST_PORTS"
     echo "DOCKER_NOBUILD=$DOCKER_NOBUILD"
     echo "WORKDIR_SUDO=$WORKDIR_SUDO"
-    echo "OSM_WORK_DIR=$OSM_STACK_NAME"
+    echo "OSM_WORK_DIR=$OSM_WORK_DIR"
     echo "OSM_DOCKER_TAG=$OSM_DOCKER_TAG"
     echo "DOCKER_USER=$DOCKER_USER"
     echo "OSM_STACK_NAME=$OSM_STACK_NAME"