Fix code style

Signed-off-by: Przemek Stekiel <przemyslaw.stekiel@mobica.com>
diff --git a/library/x509.c b/library/x509.c
index 747ba811..5f6715a 100644
--- a/library/x509.c
+++ b/library/x509.c
@@ -1205,7 +1205,7 @@
  *
  * In some cases while parsing subject alternative names the sequence tag is optional
  * (e.g. CertSerialNumber). This function is designed to handle such case.
-*/
+ */
 int mbedtls_x509_get_subject_alt_name_ext(unsigned char **p,
                                           const unsigned char *end,
                                           mbedtls_x509_sequence *subject_alt_name)