doc: update release doc markup instructions

diff --git a/doc/src/sgml/release.sgml b/doc/src/sgml/release.sgml
index 472c1f6f128d15135f48c1384b467cd67c7c2ae7..9919332278fffe05860b847d813dd31047623d8d 100644 (file)
--- a/doc/src/sgml/release.sgml
+++ b/doc/src/sgml/release.sgml
@@ -9,12 +9,13 @@ postgresql.conf, pg_hba.conf,
         recovery.conf           
 [A-Z][A-Z_ ]+[A-Z_]             , , , 
 [A-Za-z_][A-Za-z0-9_]+()        
--[-A-Za-z_]+                    
+\-\-?[A-Za-z_]+[-A-Za-z_]*       (use backslashes to avoid SGML markup)
 [A-Za-z_]+/[A-Za-z_]+           
 psql                            
 pg_[A-Za-z0-9_]+                , 
 [A-Z][A-Z][A-Z_ ]*              
-[a-z]+_[a-z_]+                  
+[a-z]+_[a-z_]+                  , 
+                                
 
 non-ASCII characters            find using grep -P '[\x80-\xFF]'
                                 convert to HTML4 named entity (&) escapes