fix(exit-code): catch exit code

[Xaving]

In some case, the program exit with error and exit code of zero. Change this to exit with non zero code each time the list of error is not empty.

[hbollon]

That sounds okay to me, however:

• This change will override the behavior of line 228 of hem_wrapper.go (see if we need to know the exact helm error code or if this line can be dropped).
• Setting an error code of 1 when any error occurs may be acceptable if all these errors are considered critical, but in this case you'd also have to stop program execution. It may therefore be more appropriate to use a critical interrupt function (either a log.fatal or a custom function with the same behavior).

[Xaving]

That sounds okay to me, however:

• This change will override the behavior of line 228 of hem_wrapper.go (see if we need to know the exact helm error code or if this line can be dropped).
• Setting an error code of 1 when any error occurs may be acceptable if all these errors are considered critical, but in this case you'd also have to stop program execution. It may therefore be more appropriate to use a critical interrupt function (either a log.fatal or a custom function with the same behavior).

I added a condition to not overwrite previous error code. And use a different exit code, before the program exits normally.

[hbollon]

Seems not optimal but acceptable 👍