Some whitespace fixes.

src/libstrongswan/plugins/pem/pem_encoder.c

@@ -92,7 +92,7 @@ bool pem_encoder_encode(key_encoding_type_t type, chunk_t *encoding,
 	len -= written;
 
 	/* replace termination null character with newline */
-    *pos = '\n';
+	*pos = '\n';
 	pos++;
 	len--;