port r17424 from 1.2 : Add openmpi lsan suppressions

tools/Makefile.am

@@ -91,6 +91,7 @@ EXTRA_DIST =				\
 	valgrind/libgomp.suppr		\
 	tsan/starpu.suppr		\
 	lsan/libc.suppr			\
+	lsan/openmpi.suppr		\
 	msvc/starpu_clean.bat		\
 	msvc/starpu_open.bat		\
 	msvc/starpu_exec.bat		\

tools/lsan/openmpi.suppr

@@ -0,0 +1,4 @@
+leak:ompi_free_list_grow
+leak:opal_dss_unpack_value
+leak:opal_dss_copy_value
+leak:mca_bml_base_btl_array_reserve