misc doc fixes

doc/man/man8/slapindex.8

@@ -3,7 +3,7 @@
 .\" Copyright 1998-2007 The OpenLDAP Foundation All Rights Reserved.
 .\" Copying restrictions apply.  See COPYRIGHT/LICENSE.
 .SH NAME
-slapindex \- SLAPD index to LDIF utility
+slapindex \- Reindex entries in a SLAPD database
 .SH SYNOPSIS
 .B SBINDIR/slapindex
 .B [\-b suffix]
@@ -28,7 +28,9 @@ is used to regenerate
 indices based upon the current contents of a database.
 It opens the given database determined by the database number or
 suffix and updates the indices for all values of all attributes
-of all entries.
+of all entries. If a list of specific attributes is provided
+on the command line, only the indices for those attributes will
+be regenerated.
 Databases configured as
 .B subordinate
 of this one are also re-indexed, unless \fB-g\fP is specified.