Salvador Fandino authored Oct 04, 2017 and Tanu Kaskinen committed Oct 07, 2017

make install was failing on Windows because there cp is
used to replace ln -s commands but cp doesn't resolve its
first argument as relative to the second one.

This patch changes the install-bashcompletion-aliases rules
to chdir to the target dir so that cp works correctly. This
is the solution recomended in the automake documentation.