Is not compatible with brew installed GNU findutils about kivy-sdk-packager

[laishulu]

after switch back to use /usr/bin/find, I got the following error:

rm: Binary file (standard input) matches
: No such file or directory
Traceback (most recent call last):
  File "package_app.py", line 234, in <module>
    main(arguments)
  File "package_app.py", line 223, in main
    compile_app(appname)
  File "package_app.py", line 167, in compile_app
    shell=True)
  File "/usr/local/Cellar/python/2.7.11/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 540, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['/usr/bin/find -E myapp.app -regex "(.*)\\.py" -print0 | grep -v __init__ | xargs -0 rm']' returned non-zero exit status 123

I found it's caused by the brew installed GNU grep.