Why is gindent a package?  Why is it not /usr/bin/indent?  

It has a BSD license and is derived from BSD indent(1), per the man page. 
NetBSD's indent is, um, suboptimal.  At least, I couldn't get it to
consistently line up switch statements.  

Seems to me it could be treated along the lines of sendmail and bind:
maintained elsewhere but part of NetBSD.  

I realize it's not a burning issue, but it's surprisingly used:

$ pkg_info gindent |grep -E '^[a-z].+[0-9]$' |wc -l
      36

I searched the ML but didn't find any discussion.

--jkl