Advertise and improve sage -fixdoctest

[nthiery]

After this patch, sage -fixdoctest handles multiline doctests,
and use the line number info of sage -t to be more robust (handles
multiple doctests with the same expected output in the same file).

By the way, sage -advanced advertises sage -fixdoctest.

CC: @sagetrac-sage-combinat @mwhansen @rlmill

Component: doctest coverage

Keywords: fix doctests

Author: Nicolas M. Thiéry

Reviewer: Mike Hansen

Merged: sage-4.3.alpha0

Issue created by migration from https://trac.sagemath.org/ticket/6354

[mwhansen]

comment:1

Attachment: sage-fixdoctests-6354-nt.patch.gz

Looks good to me.

[mwhansen]

Changed author from nthiery to Nicolas Thiery

[mwhansen]

Reviewer: Mike Hansen

[rlmill]

Merged: sage-4.1.alpha0

[nthiery]

comment:3

Replying to @rlmill:

Err, I don't see it in sage-4.2.1; was it somehow lost?

[nthiery]

Changed author from Nicolas Thiery to Nicolas M. Thiéry

[rlmill]

comment:4

Sorry, it must have gotten lost during merging....

[nthiery]

comment:5

Replying to @rlmill:

Sorry, it must have gotten lost during merging....

No worry :-) I set it back to positive review so that it get merged in 4.3.

[mwhansen]

Changed merged from sage-4.1.alpha0 to sage-4.3.alpha0