completion: add LTS aliases.

Author: ljharb

bash_completion

@@ -57,9 +57,9 @@ __nvm_aliases ()
   declare aliases
   aliases=""
   if [ -d $NVM_DIR/alias ]; then
-    aliases="`cd $NVM_DIR/alias && command ls`"
+    aliases="$(cd $NVM_DIR/alias && find $PWD -type f | sed "s:$PWD/::")"
   fi
-  echo "${aliases}"
+  echo "${aliases} node stable unstable iojs"
 }
 
 __nvm_alias ()