Segfault when passed a non-existent bundle

[markshep]

$ ../bin/ios-deploy --version
1.7.0
$ ../bin/ios-deploy --bundle does-not-exist
Segmentation fault: 11

[shazron]

Error here: https://github.com/phonegap/ios-deploy/blob/16f52589db0333aca2676cb1a4e385d78f38c8cf/ios-deploy.c#L1937