indent: add patch needed for debug build

packages/indent/code_io.c.patch

@@ -0,0 +1,11 @@
+--- ../code_io.c.orig	2019-05-30 20:55:54.216630725 +0200
++++ ./src/code_io.c	2019-05-30 20:55:57.723297366 +0200
+@@ -210,7 +210,7 @@
+ #endif
+ 
+     unsigned int namelen = strlen(filename);
+-    int          fd      = open(filename, O_RDONLY, 0777);
++    int          fd      = open(filename, O_RDONLY);
+ 
+     if (fd < 0)
+     {