Routine upgrade glpk 4.61 and over break a debugging doctest as a source file has changed location and name.

tarball: http://sagetrac.lipn.univ-paris13.fr/sage/glpk-4.63.tar.bz2

CC: @dcoudert

Component: packages: standard

Author: François Bissey

Branch/Commit: a6e1d23

Reviewer: Jeroen Demeyer

Issue created by migration from https://trac.sagemath.org/ticket/23596