Remark about zero byte

diff --git a/spec/encoding/str.texi b/spec/encoding/str.texi
index 51d3089ee9e1b824f9f3884f70990aadbb2f6bd7a271a693062f0506f5bd7084..288349a082d4c58a2dba267394e6cdb8ce58d7c1bb0df5d24da0b3e84d71c204 100644 (file)
--- a/spec/encoding/str.texi
+++ b/spec/encoding/str.texi
@@ -32,8 +32,8 @@ If length value equals to:
 
 String's length @strong{must} be encoded in shortest possible form.
 
-UTF-8 strings @strong{must} be valid UTF-8 sequences. That also
-automatically assures that no zero byte will be met.
+UTF-8 strings @strong{must} be valid UTF-8 sequences, except that null
+byte is not allowed.
 
 Example representations: