the changes here are meant to make it so that the npm cli doesn't have to know about what keys npm-install-checks sets in the current and required properties of the error. to facilitate this, the following changes to output have been made:

• arch has been renamed to cpu to reflect the field in the package.json that is actually being checked
• any fields that are undefined or a zero-length array in the error's required property are removed from the messaging. this can reduce the messaging so users are only shown things that the package actually asked for rather than letting undefined and empty strings through
• field names are no longer uppercased in the detailed message, instead they are left as the error has them
• Valid and Actual lines for the same key are now next to each other instead of having all of the Valids followed by all of the Actuals

Example of the previous valid/actual behavior

Valid OS:     darwin
Valid Arch:   arm64
Actual OS:    linux
Actual Arch:  x86

And the new behavior

Valid os:    darwin
Actual os:   linux
Valid cpu:   arm64
Actual cpu:  x86