changes.src: document suppressed messages

Document the suppression of error messages from "label changed".

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
diff --git a/doc/changes.src b/doc/changes.src
index c9b5995..a4df047 100644
--- a/doc/changes.src
+++ b/doc/changes.src
@@ -7,6 +7,11 @@
 The NASM 2 series supports x86-64, and is the production version of NASM
 since 2007.
 
+\S{cl-2.14.03} Version 2.14.03
+
+\b Suppress nuisance "\c{label changed during code generation}" messages
+after a real error.
+
 \S{cl-2.14.02} Version 2.14.02
 
 \b Fix crash due to multiple errors or warnings during the code