pkg/33088: rsync install fails with /bin/sh error

[stuart%zeus.com@localhost]

>Number:         33088
>Category:       pkg
>Synopsis:       rsync install fails with /bin/sh error
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Mar 15 16:45:00 +0000 2006
>Originator:     Stuart Shelton
>Release:        
>Organization:
>Environment:
>Description:

I don't have rsync installed - running "bmake install", "bmake reinstall", or 
"bmake update" in net/rsync results in:

# bmake install
===> do-fetch [rsync-2.6.7] ===> Checking for vulnerabilities in rsync-2.6.7
===> do-su-install [rsync-2.6.7] ===> Installing for rsync-2.6.7
/bin/sh: syntax error at line 1 : `do' unexpected
*** Error code 2

Stop.
bmake: stopped in /usr/bsd/src/net/rsync
*** Error code 1

Stop.
bmake: stopped in /usr/bsd/src/net/rsync
*** Error code 1

Stop.
bmake: stopped in /usr/bsd/src/net/rsync
*** Error code 1

Stop.
bmake: stopped in /usr/bsd/src/net/rsync

... so far as I can tell, this appears to be an error in 
$PKGSRCDIR/mk/bsd.pkg.mk concerning do-su-install or real-su-install - but I've 
not managed to track it down yet.

I've tried replacing /bin/sh with pkgsrc's bash and the OS GNU bash - and the 
same problem is encountered in all cases.  However, with bash I notice that the 
error is:

/bin/sh: -c: line 1: syntax error near unexpected token `do'

... but I can't see any instances of "-c" near a "do"
>How-To-Repeat:

>Fix: