shrink tests: clearer description
diff --git a/tests/suites/test_suite_mpi.data b/tests/suites/test_suite_mpi.data
index 6dcf575..d21e2f7 100644
--- a/tests/suites/test_suite_mpi.data
+++ b/tests/suites/test_suite_mpi.data
@@ -283,28 +283,28 @@
Swap self: null
mpi_swap_self:""
-Shrink 2 in 2 to 4
+Shrink 2 limbs in a buffer of size 2 to 4
mbedtls_mpi_shrink:2:2:4:4
-Shrink 2 in 4 to 4
+Shrink 2 limbs in a buffer of size 4 to 4
mbedtls_mpi_shrink:4:2:4:4
-Shrink 2 in 8 to 4
+Shrink 2 limbs in a buffer of size 8 to 4
mbedtls_mpi_shrink:8:2:4:4
-Shrink 4 in 8 to 4
+Shrink 4 limbs in a buffer of size 8 to 4
mbedtls_mpi_shrink:8:4:4:4
-Shrink 6 in 8 to 4 yielding 6
+Shrink 6 limbs in a buffer of size 8 to 4 yielding 6
mbedtls_mpi_shrink:8:6:4:6
-Shrink 2 in 4 to 0 yielding 2
+Shrink 2 limbs in a buffer of size 4 to 0 yielding 2
mbedtls_mpi_shrink:4:2:0:2
-Shrink 1 in 4 to 0 yielding 1
+Shrink 1 limbs in a buffer of size 4 to 0 yielding 1
mbedtls_mpi_shrink:4:1:0:1
-Shrink 0 in 4 to 0 yielding 1
+Shrink 0 limbs in a buffer of size 4 to 0 yielding 1
mbedtls_mpi_shrink:4:0:0:1
Test mbedtls_mpi_safe_cond_assign #1
