[Rd] error with solveLP(linprog) (PR#11721)

[wei.boca at gmail.com]

Full_Name: wfeng
Version: 2.7
OS: windows xp
Submission from: (NULL) (208.62.252.2)


for solveLP(linprog), the program is specified as 

Minimizes c'x, subject to A x >= b and x >= 0. 

However, what I found is the actual constraints that works with the function
are

A x <= b and x >= 0.