Merge pull request #1665 from norpol/fix_issue_1664_unassigned_variable_20171115

Fix #1664: unassigned variable

nvm.sh

@@ -514,6 +514,7 @@ nvm_remote_versions() {
   local NVM_LS_REMOTE_IOJS_EXIT_CODE
   NVM_LS_REMOTE_IOJS_EXIT_CODE=0
   local NVM_LS_REMOTE_IOJS_OUTPUT
+  NVM_LS_REMOTE_IOJS_OUTPUT=
   if [ -z "${NVM_LTS-}" ] && ( \
     [ -z "${NVM_FLAVOR-}" ] || [ "${NVM_FLAVOR-}" = "${NVM_IOJS_PREFIX}" ] \
   ); then

test/installation_node/install LTS

@@ -1,6 +1,6 @@
 #!/bin/sh
 
-set -ex
+set -eux
 
 die () { echo "$@" ; exit 1; }