[patch] 7.4 initdb - drop trailing slash from $PGDATA

I made a mistake while running 7.4 under W2k/Cygwin, so perhaps
the patch would give user a little more comfort.

root(at)w2kpicasso:~/work/tpu/course/1132/sql/postgres# LC_ALL=C initdb /usr/share/postgresql/data/
The files belonging to this database system will be owned by user "root".
This user must also own the server process.

The database cluster will be initialized with locale C.

creating directory /usr/share/postgresql/data/... ok
creating directory /usr/share/postgresql/data//base... ok
creating directory /usr/share/postgresql/data//global... ok
creating directory /usr/share/postgresql/data//pg_xlog... ok
creating directory /usr/share/postgresql/data//pg_clog... ok
selecting default max_connections... Caught signal.
Caught signal.

--- initdb.orig 2004-01-17 13:14:36.000000000 +0200
+++ initdb 2004-01-17 13:18:08.000000000 +0200
@@ -333,6 +333,15 @@
shift
done

+
+
+if [ ! -z "$PGDATA" ]; then
+ # Remove trailing slash
+ PGDATA=`echo "$PGDATA" | sed -e "s/\/$//"`
+fi
+
+
+
if [ "$usage" ]; then
echo "$CMDNAME initializes a PostgreSQL database cluster."
echo