Back-port shell script syntax fix needed for some BSD machines.

Per buildfarm results from spoonbill.

diff --git a/src/test/regress/pg_regress.sh b/src/test/regress/pg_regress.sh
index 52b1ffd513ea6bd28ec788fa64ce5334e781dd50..5cd83d0643191cc5bc53860bc76e7be0924422ee 100644 (file)
--- a/src/test/regress/pg_regress.sh
+++ b/src/test/regress/pg_regress.sh
@@ -436,7 +436,7 @@ then
     if [ "$unix_sockets" = no ]; then
         postmaster_options="$postmaster_options -c listen_addresses=$hostname"
     else
-        postmaster_options="$postmaster_options -c listen_addresses=''"
+        postmaster_options="$postmaster_options -c listen_addresses="
     fi
     "$bindir/postmaster" -D "$PGDATA" -F $postmaster_options >"$LOGDIR/postmaster.log" 2>&1 &
     postmaster_pid=$!