[package] adding non-existent file corrupts packages

[diver]

This is hrev46301.

cp /system/packages/haiku-r1* .
package add haiku-r1* foo

Failed to open entry "foo": No such file or directory

Let's do in again?

package add haiku-r1* foo

Error: 71 excess bytes in package attributes strings section

[diver]

Interestingly, I can only reproduce it with this package, adding non-existent files to any other package correctly fails with No such file or directory error, however, their mtime change.

[waddlesplash]

Any other files this is reproducible with?

[nielx]

Remove milestone for tickets with status = closed and resolution != fixed