contrib: update tcsh_completion with commands for 1.6

Added the following commands: debugbuilddag debugdag debugpushkey
debugrevspec.

contrib/tcsh_completion

@@ -2,7 +2,7 b''
 # tcsh completion for Mercurial
 #
 # This file has been auto-generated by tcsh_completion_build.sh for
-# Mercurial Distributed SCM (version 1.3.1+269-5d8125bbbbf4)
+# Mercurial Distributed SCM (version 1.5.4+154-8b452fe4bf50)
 #
 # Copyright (C) 2005 TK Soh.
 #
@@ -32,18 +32,19 b' complete hg \\'
   'p/1/(add addremove annotate blame archive \
     backout bisect branch branches bundle \
     cat clone commit ci copy \
-    cp debugancestor debugcheckstate debugcommands debugcomplete \
-    debugdata debugdate debugfsinfo debugindex debugindexdot \
-    debuginstall debugrebuildstate debugrename debugsetparents debugstate \
-    debugsub debugwalk diff export forget \
-    grep heads help identify id \
-    import patch incoming in init \
-    locate log history manifest merge \
-    outgoing out parents paths pull \
-    push recover remove rm rename \
-    mv resolve revert rollback root \
-    serve showconfig debugconfig status st \
-    summary sum tag tags tip \
-    unbundle update up checkout co \
-    verify version)/'
+    cp debugancestor debugbuilddag debugcheckstate debugcommands \
+    debugcomplete debugdag debugdata debugdate debugfsinfo \
+    debugindex debugindexdot debuginstall debugpushkey debugrebuildstate \
+    debugrename debugrevspec debugsetparents debugstate debugsub \
+    debugwalk diff export forget grep \
+    heads help identify id import \
+    patch incoming in init locate \
+    log history manifest merge outgoing \
+    out parents paths pull push \
+    recover remove rm rename mv \
+    resolve revert rollback root serve \
+    showconfig debugconfig status st summary \
+    sum tag tags tip unbundle \
+    update up checkout co verify \
+    version)/'