K 10
svn:author
V 6
eadler
K 8
svn:date
V 27
2018-05-20T23:19:09.085838Z
K 7
svn:log
V 502
top(1): set max username length based on system constant

This changes previous behavior of calculating it at startup based on
the current max username length.

This is done because:
- it is in theory possible for the max length to change at run-time
  (e.g., a new user is added after top starts running)
- on machines with many users this delays startup significantly

PR:		20799
PR:		89762
Reported by:	ob@e-Gitt.NET
Reported by:	wkwu@Kavalan.csie.NCTU.edu.tw
Reported on:	2000-08-23 and 2005-11-30

END