BUG #7781: pgagent incorrect installation

The following bug has been logged on the website:

Bug reference:      7781
Logged by:          Alexander Shniperson
Email address:      alex.shniperson@gmail.com
PostgreSQL version: 9.1.7
Operating system:   osx lion 10.7.5
Description:        =


Hi.

Just installed last PostgreSQL 9.1.7 and installed pgAgent from Application
builder, but when i run pgAdmin no Jobs at all and even more in console i
have error "com.apple.launchd: (com.edb.launchd.pgagent[55389])
posix_spawn("/Library/pgAgent/bin/pgagent", ...): No such file or directory
"
fix it please, thanks.