Fix example
Running example as is fails with: type 'depset' is not iterable
Closes
@@ -84,7 +84,7 @@ def _print_aspect_impl(target, ctx):
# Iterate through the files that make up the sources and
# print their paths.
for src in ctx.rule.attr.srcs:
- for f in src.files:
+ for f in src.files.to_list():
print(f.path)
return []
