Makefile patch has been replaced by an inreplace block as it is easier to
understand.
`umfpack` is now aliased to `suite-sparse`. UMFPACK is the SuiteSparse
component that most people look for as it is a SciPy dependency.
ClosesHomebrew/homebrew#3814.
Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>