Log Message:
-----------
In ipcclean, check LOGNAME only if USER is not set.
Fixes problem with 'su' on some platforms.
Tags:
----
REL8_1_STABLE
Modified Files:
--------------
pgsql/src/bin/ipcclean:
ipcclean.sh (r1.15 -> r1.15.6.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/ipcclean/ipcclean.sh.diff?r1=1.15&r2=1.15.6.1)