Fix style issues

Signed-off-by: Ben Taylor <ben.taylor@linaro.org>
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 8b5d6a1..39a9732 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -1069,7 +1069,7 @@
 
 #if defined(MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED)
 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
-        ssl->handshake->sig_algs_heap_allocated = 0;
+    ssl->handshake->sig_algs_heap_allocated = 0;
 #endif /* !MBEDTLS_DEPRECATED_REMOVED */
 #endif /* MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED */
     return 0;