change test function includes to use one convention
diff --git a/library/pem.c b/library/pem.c
index c6d077c..b5e8eee 100644
--- a/library/pem.c
+++ b/library/pem.c
@@ -27,6 +27,7 @@
 #endif
 
 #if defined(POLARSSL_PEM_PARSE_C) || defined(POLARSSL_PEM_WRITE_C)
+
 #include "polarssl/pem.h"
 #include "polarssl/base64.h"
 #include "polarssl/des.h"