bug#25826: 26.0.50; cl-mapc and cl-mapl do needless consing

[Tino Calancha]

Tino Calancha <tino.calancha@gmail.com> writes:

> On Wed, 22 Feb 2017, npostavs@users.sourceforge.net wrote:
>
>> Tino Calancha <tino.calancha@gmail.com> writes:
>>> It's tricky to write a test to check if cl-mapc/cl-mapl over cons.
>>> Thus, i have written tests that just ensure the return values
>>> are as expected.
>>
>> We should check that the args are consp at least:
> That's right.  Thanks for the patch!
> I will push it to master in a few days if we don't get additonal feedback.
Pushed to master branch as commit 4daca38d5c673c5b6862e10cfade9559852cce12