Correct restrict basename argument count

scripts/list

@@ -35,7 +35,7 @@ list_gemsets() {
   done ; unset version
 
   if [[ -f "$rvm_config_path/default" ]] && [[ -s $rvm_config_path/default ]] ; then
-    version=$(grep 'MY_RUBY_HOME' $rvm_config_path/default | head -n 1 | awk -F"'" '{print $2}' | xargs basename)
+    version=$(grep 'MY_RUBY_HOME' $rvm_config_path/default | head -n1 | awk -F"'" '{print $2}' | xargs basename)
     if [[ ! -z "$version" ]] ; then
       printf "\n\nDefault Ruby (for new shells)\n"
       string="[ $(file $rvm_rubies_path/$version/bin/ruby | awk '/x86.64/ {print "x86_64"} /386/ {print "i386"} /ppc/ {print "ppc"}' | \tr "\n" ' ')]"
@@ -81,7 +81,7 @@ list_strings() {
 # This is meant to be used with scripting.
 list_gemset_strings() {
   local all_rubies="$(list_strings)"
-  for gemset in $(\ls $rvm_gems_path/ 2>/dev/null | xargs -- basename | grep -v '^\(@\|doc$\|cache$\|system$\)' | sort); do
+  for gemset in $(\ls $rvm_gems_path/ 2>/dev/null | xargs -n1 basename | grep -v '^\(@\|doc$\|cache$\|system$\)' | sort); do
     local ruby_name="$(echo "$gemset" | awk -F$rvm_gemset_separator '{print $1}')"
     [[ "$all_rubies" != *"$ruby_name"* ]] && continue
     echo "$gemset"