bug#10153: 24.0.91; behavior of TAB in text modes is different

[Glenn Morris]

Chong Yidong wrote:

> It appears that when the region is active, TAB in text mode now tries to
> indent to the previous line, i.e. it behaves like TAB in programming
> modes.  Is this is a new intended feature?

I don't know. In Emacs 23, indent-region calls indent-line-function,
which is indent-relative in text mode.

In the current trunk, indent-region calls indent-according-to-mode
(since 2010-09-18), which specifically ignores indent-relative in favour
of an ad hoc indentation.

(Also the doc of indent-region does not seem to have been updated for
this change.)