mpi/Makefile.am: fix setting of variable LOG_COMPILER and TESTS_ENVIRONMENT (aka i should read my modifs twice before committing ...)

mpi/Makefile.am

@@ -19,9 +19,9 @@ CCLD=$(MPICC)
 
 if STARPU_MPI_CHECK
 if STARPU_HAVE_AM111
-TESTS_ENVIRONMENT 	=	$(MPIEXEC) -np 2
-else
 LOG_COMPILER	 	=	$(MPIEXEC) -np 2
+else
+TESTS_ENVIRONMENT 	=	$(MPIEXEC) -np 2
 endif
 TESTS			=	$(check_PROGRAMS)
 endif