Less strict auto complete string check

The less strict test for `# Node Completion` will run against variations of the auto completion script. For instance, my personal .bashrc has, failing the check for `# NODE-COMPLETE`

```
# {{{
# Node Completion - Auto-generated, do not touch.
shopt -s progcomp
for f in $(command ls ~/.node-completion); do
  f="$HOME/.node-completion/$f"
  test -f "$f" && . "$f"
done
# }}}
```