scripts/Bootstrap/Pmodules/modulecmd.in: unset CDPATH added; print message in sub-command 'load' if no module specified

scripts/Bootstrap/Pmodules/modulecmd.in

@@ -1,4 +1,8 @@
 #!@PMODULES_HOME@/bin/bash
+#
+
+# we have to unset CDPATH, otherwise 'cd' prints the directoy!
+unset CDPATH
 
 declare -r  PMODULES_DIR=$( cd "$(dirname $0)/.." && pwd )
 declare -r  version='@PMODULES_VERSION@'
@@ -464,6 +468,11 @@ subcommand_generic1plus() {
 	"${modulecmd}" "${shell}" "${subcommand}" "$@"
 }
 
+#
+# load module
+# 
+# $1: module to load
+#
 subcommand_load() {
 	output_load_hints() {
 		local -ra rels=( ${available_releases//:/ } )
@@ -509,7 +518,9 @@ subcommand_load() {
 	}
 	
 	local -r m=$1
-	if module_is_available "${m}"; then
+	if [[ "${m}" == "" ]]; then
+		echo "No module specified." 1>&2
+	elif module_is_available "${m}"; then
 		"${modulecmd}" "${shell}" load "${m}"
 	else
 		if [[ ${userlvl} = 'novice' ]]; then