[PATCH 1 of 7 STABLE] files: refer "hg help filesets" instead of "hg help revsets" in help text

[FUJIWARA Katsunori]

# HG changeset patch
# User FUJIWARA Katsunori <foozy at lares.dti.ne.jp>
# Date 1414777278 -32400
#      Sat Nov 01 02:41:18 2014 +0900
# Branch stable
# Node ID 12837ba22784f342756cd89bc59f05c637cddce5
# Parent  5459b30aa498b29b8ce350fafc41f7851a6975b0
files: refer "hg help filesets" instead of "hg help revsets" in help text

"specifying FILE patterns" should refer the former.

diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -3212,7 +3212,7 @@
 
           hg files -0 | xargs -0 grep foo
 
-    See :hg:'help pattern' and :hg:'help revsets' for more information
+    See :hg:'help pattern' and :hg:'help filesets' for more information
     on specifying file patterns.
 
     Returns 0 if a match is found, 1 otherwise.