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-rw-r--r--src/lib/conf/conftypes.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/lib/conf/conftypes.h b/src/lib/conf/conftypes.h
index 3b754e07be..fabad97d0c 100644
--- a/src/lib/conf/conftypes.h
+++ b/src/lib/conf/conftypes.h
@@ -112,12 +112,14 @@ typedef struct struct_magic_decl_t {
#define CVFLAG_OBSOLETE (1u<<0)
/**
* Flag to indicate that an option is undumpable. An undumpable option is
- * never saved to disk, and is prefixed with __.
+ * never saved to disk. For historical reasons it is prefixed with __ but
+ * not with ___.
**/
#define CVFLAG_NODUMP (1u<<1)
/**
* Flag to indicate that an option is "invisible". An invisible option
* is always undumpable, and we don't tell the controller about it.
+ * For historical reasons it is prefixed with ___.
**/
#define CVFLAG_INVISIBLE (1u<<2)