Correct style.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
diff --git a/programs/test/selftest.c b/programs/test/selftest.c
index 23a45c9..8874761 100644
--- a/programs/test/selftest.c
+++ b/programs/test/selftest.c
@@ -253,7 +253,7 @@
     { "sha512", mbedtls_sha512_self_test },
 #endif
 #if defined(MBEDTLS_SHA3_C)
-    {"sha3", mbedtls_sha3_self_test},
+    { "sha3", mbedtls_sha3_self_test },
 #endif
 #if defined(MBEDTLS_DES_C)
     { "des", mbedtls_des_self_test },