Don't overwrite the variable LOCATE_CONFIG

This is useful for people who want index their home directory:

$ env LOCATE_CONFIG=$HOME/.locate.rc /usr/libexec/locate.updatedb

Submitted by: Dmitry Morozovsky <marck@rinet.ru>

usr.bin/locate/locate/locate.updatedb.8

@@ -54,8 +54,14 @@ the default database
 .It Pa /etc/locate.rc
 the configuration file
 .El
+.Sh ENVIRONMENT
+.Bl -tag -width  /var/db/locate.databas -compact
+.It Pa LOCATE_CONFIG
+path to the the configuration file
+.El
 .Sh SEE ALSO
-.Xr locate 1
+.Xr locate 1 ,
+.Xr periodic 8
 .Rs
 .%A Woods, James A.
 .%D 1983

usr.bin/locate/locate/updatedb.sh

@@ -26,9 +26,9 @@
 #
 # updatedb - update locate database for local mounted filesystems
 #
-# $Id: updatedb.sh,v 1.12 1998/11/29 14:46:35 wosch Exp $
+# $Id: updatedb.sh,v 1.13 1999/02/28 20:40:19 ache Exp $
 
-LOCATE_CONFIG="/etc/locate.rc"
+: ${LOCATE_CONFIG="/etc/locate.rc"}
 if [ -f "$LOCATE_CONFIG" -a -r "$LOCATE_CONFIG" ]; then
        . $LOCATE_CONFIG
 fi