postgresql_default.conf: Added a short usage and copyright header.

diff --git a/src/postgresql_default.conf b/src/postgresql_default.conf
index 21a0cd5..d289ded 100644 (file)
--- a/src/postgresql_default.conf
+++ b/src/postgresql_default.conf
@@ -1,4 +1,9 @@
 # Pre-defined queries of collectd's postgresql plugin.
+#
+# Do not edit this file. If you want to change any of the query definitions,
+# overwrite them in collectd.conf instead.
+#
+# This file is distributed under the same terms as collectd itself.
 
 <Query backends>
        Statement "SELECT count(*) AS count \