master updated (1c84b18 -> 0e00f19)

[Mattias Engdegård]

mattiase pushed a change to branch master.

      from  1c84b18   Fix builds without modules
       new  f66829e   * lisp/simple.el (undo-redo): Rephrase error message.
       new  0e00f19   Calc: fix binomial coefficients for negative arguments 
(bug#16999)


Summary of changes:
 lisp/calc/calc-comb.el       | 42 ++++++++++++++++++---------
 lisp/simple.el               |  2 +-
 test/lisp/calc/calc-tests.el | 67 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 97 insertions(+), 14 deletions(-)