lib/gn: fix gn fetcher when in debug mode
Created by: quaresmajose
To replicate we can run bitbake in debug mode with:
| bitbake flutter-engine-runtimerelease -D --runonly=fetch
This will rise the following python exception:
| Traceback (most recent call last): | File "/srv/oe/bitbake/lib/bb/ui/knotty.py", line 685, in main | event.msg = taskinfo['title'] + ': ' + event.msg | TypeError: can only concatenate str (not "int") to str
Signed-off-by: Jose Quaresma jose.quaresma@foundries.io