Minor comment updates

Signed-off-by: Ben Taylor <ben.taylor@linaro.org>
diff --git a/programs/fuzz/fuzz_server.c b/programs/fuzz/fuzz_server.c
index 40fd9ca..03e33b7 100644
--- a/programs/fuzz/fuzz_server.c
+++ b/programs/fuzz/fuzz_server.c
@@ -199,7 +199,7 @@
 #if defined(MBEDTLS_X509_CRT_PARSE_C) && defined(MBEDTLS_PEM_PARSE_C)
     mbedtls_x509_crt_free(&srvcert);
     mbedtls_pk_free(&pkey);
-#endif /* (MBEDTLS_X509_CRT_PARSE_C) && defined(MBEDTLS_PEM_PARSE_C) */
+#endif /* MBEDTLS_X509_CRT_PARSE_C MBEDTLS_PEM_PARSE_C */
     mbedtls_ssl_free(&ssl);
     mbedtls_psa_crypto_free();
 #else /* MBEDTLS_SSL_SRV_C && MBEDTLS_ENTROPY_C && MBEDTLS_CTR_DRBG_C */
diff --git a/programs/fuzz/fuzz_x509crl.c b/programs/fuzz/fuzz_x509crl.c
index ae0f852..af50e25 100644
--- a/programs/fuzz/fuzz_x509crl.c
+++ b/programs/fuzz/fuzz_x509crl.c
@@ -21,7 +21,7 @@
     if (ret == 0) {
         ret = mbedtls_x509_crl_info((char *) buf, sizeof(buf) - 1, " ", &crl);
     }
-#else /* MBEDTLS_X509_REMOVE_INFO */
+#else /* !MBEDTLS_X509_REMOVE_INFO */
     ((void) ret);
     ((void) buf);
 #endif /* !MBEDTLS_X509_REMOVE_INFO */