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Ok, so the reason was: "IBM i user names and group names returned by runtime functions such as getpwuid and getgrgid are normally limited to 8 characters (to avoid exceeding the amount of buffer space provided by some AIX utilities and runtime)."
And in the thread you referenced I asked some questions related to this which never got answered:

Since this environment variable is not really bleeding edge can I hope that others may have discovered most of the buffer overruns, reported them, and had the issue resolved by fixing the program with the buffer overrun and not by reverting the environment variable?

How big of a concern is this? (to avoid exceeding the amount of buffer space provided by some AIX utilities and runtime)

But, other than those questions, you did help point out an existing thread where this was hashed over. I think I just stumbled over the old 'idea' I submitted regarding this while submitting another idea today.

Rob Berendt

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