Add documentation for the `allow_empty` param of `glob`.
RELNOTES: None
@@ -301,7 +301,7 @@ exports_files(["golden.txt"])
<h2 id="glob">glob</h2>
-<pre>glob(include, exclude=[], exclude_directories=1)</pre>
+<pre>glob(include, exclude=[], exclude_directories=1, allow_empty=True)</pre>
<p>
Glob is a helper function that can be used anywhere a list of filenames
@@ -327,6 +327,11 @@ If the <code>exclude_directories</code> argument is enabled (set to 1), files of
type directory will be omitted from the results (default 1).
</p>
<p>
+If the <code>allow_empty</code> argument is set to <code>False<\code>, the
+<code>glob</code> function will error-out if the result would otherwise be the
+empty list.
+</p>
+<p>
There are several important limitations and caveats:
</p>
