Make sh(1) support \u in PS1. This removes one fork/exec on interactive
shell startup.
Reviewed by: 0mp (man page), jilles
MFC after: 2 weeks
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D18790
Make sh(1) support \u in PS1. This removes one fork/exec on interactive Tags None Referenced Files None Subscribers None
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