When constructing System.Globalization.CultureInfo objects, they can throw exception:
ArgumentException: Culture ID 0 (0x0000) is not a supported culture.
However, after inserting logs into the file, the exception is no longer thrown.

Reproduced on both iOS and Android, on both IL2CPP and Mono.

Steps:
1. Build and Run attached project ("Unity5-iOSCultureExceptionRepro.zip") on Andoird or iOS device
2. Press 'Without Logs' button
Result: ArgumentException occurs. On iOS build crashes.

Reproduced with: 2017.3.0b1, 2017.1.1p3, 5.6.3p3.

Tested with: iPod 6th gen (iOS10.2.1), Nexus 6 (Android 6.0.1).

Note: Interestingly, pressing the 'With Logs' button FIRST, and then pressing 'Without Logs' will NOT cause the exception to occur.

WORKAROUND: Workarounds include using a later version of the .NET Libraries (because the culturecode is quite different and this doesn't happen) or making a call to `System.Globalization.CultureInfo.CurrentCulture` first and this will set the BootstrapCultureID.