technical/partial-clone: update reference to rev-list-options.adoc

Signed-off-by: Todd Zullinger <tmz@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/technical/partial-clone.adoc

diff --git a/Documentation/technical/partial-clone.adoc b/Documentation/technical/partial-clone.adoc
index bf5ec5c..e513e39 100644
--- a/Documentation/technical/partial-clone.adoc
+++ b/Documentation/technical/partial-clone.adoc
@@ -85,7 +85,7 @@
   server to request filtering during packfile construction.
 +
 There are various filters available to accommodate different situations.
-See "--filter=<filter-spec>" in Documentation/rev-list-options.txt.
+See "--filter=<filter-spec>" in Documentation/rev-list-options.adoc.
 
 - On the server pack-objects applies the requested filter-spec as it
   creates "filtered" packfiles for the client.