Adjust spacing in tests/suites function sources

Signed-off-by: Michael Schuster <michael@schuster.ms>
diff --git a/tests/suites/test_suite_bignum.function b/tests/suites/test_suite_bignum.function
index 22a637a..7cbbbe8 100644
--- a/tests/suites/test_suite_bignum.function
+++ b/tests/suites/test_suite_bignum.function
@@ -45,8 +45,8 @@
  * the format that mbedtls_mpi_read_string understands and is chunk_len long.
  */
 static int mbedtls_test_mpi_miller_rabin_determinizer(void *state,
-                                               unsigned char *buf,
-                                               size_t len)
+                                                      unsigned char *buf,
+                                                      size_t len)
 {
     mbedtls_test_mpi_random *random = (mbedtls_test_mpi_random *) state;