Recommendation to omit zero bytes in MAGIC

diff --git a/spec/encoding/magic.texi b/spec/encoding/magic.texi
index 1a885cdfdd3ab3912a8f083653a31d4fc01187a57b151004cd0a399a0eaa5152..f46b941c06a3ba119069ad3467b911152fb3047c635ee88f83b44f8be6ab8119 100644 (file)
--- a/spec/encoding/magic.texi
+++ b/spec/encoding/magic.texi
@@ -4,7 +4,9 @@
 
 MAGIC is an atom holding magic number/string aimed to identify the data
 following it. It is a concatenation of ASCII("KEKS") and 12-byte magic,
-padded with zeros if necessary.
+padded with zeros if necessary. Zero bytes should not be used in it,
+except for trailing ones.
+
 It is intended to be prepended to the KEKS-encoded data in files.
 
 @multitable @columnfractions .5 .5