histedit: use "getcommiteditor()" instead of explicit editor choice for "--continue"
This omits (redundant) adding "\n' to "message", because:
- empty line is inserted by "commitforceeditor", if editor is invoked
- tail white-spaces are stripped at storing into chaneglog, otherwise
This patch also enhances "test-histedit-edit.t", because "hg histedit"
hasn't been explicitly tested around editor invocation and
"--continue" option.
all()
draft()
::tip
draft() and ::tip
::tip and draft()
0::tip
roots(0::tip)
author(lmoscovicz)
author(mpm)
author(lmoscovicz) or author(mpm)
author(mpm) or author(lmoscovicz)
tip:0
max(tip:0)
min(0:tip)
0::
min(0::)
roots((tip~100::) - (tip~100::tip))
::p1(p1(tip))::
public()
:10000 and public()
draft()
:10000 and draft()