[PATCH 7 of 9] histedit: pass "editor" argument to "memctx.__init__()" for "collapse" command

[FUJIWARA Katsunori]

# HG changeset patch
# User FUJIWARA Katsunori <foozy at lares.dti.ne.jp>
# Date 1399292800 -32400
#      Mon May 05 21:26:40 2014 +0900
# Branch stable
# Node ID 66ca0c1187fd5bb4b959d38aef3b21892ebd0b15
# Parent  cd4a83a83ed9f038645cdab9d710b3ca0a4eb481
histedit: pass "editor" argument to "memctx.__init__()" for "collapse" command

The preceding patch causes that "memctx.__init__()" with "editor"
argument invokes editor and saves edited commit message into
".hg/last-message.txt".

This patch passes "editor" argument to "memctx.__init__()" instead of
explicit invocations of "commitforceeditor()" and
"savecommitmessage()" for "collapse" command.

diff --git a/hgext/histedit.py b/hgext/histedit.py
--- a/hgext/histedit.py
+++ b/hgext/histedit.py
@@ -298,9 +298,8 @@
                          filectxfn=filectxfn,
                          user=user,
                          date=date,
-                         extra=extra)
-    new._text = cmdutil.commitforceeditor(repo, new, [])
-    repo.savecommitmessage(new.description())
+                         extra=extra,
+                         editor=cmdutil.commitforceeditor)
     return repo.commitctx(new)
 
 def pick(ui, repo, ctx, ha, opts):