improve tracking of stable versions

squirrelmail/squirrelmail.spec

@@ -103,12 +103,12 @@ AutoReqProv:  no
     prog squirrelmail = {
         version   = %{version}
         url       = http://prdownloads.sourceforge.net/squirrelmail/
-        regex     = squirrelmail-(\d+\.[4]\.\d+)\.tar\.bz2
+        regex     = squirrelmail-(\d+\.[02468]\.\d+)\.tar\.bz2
     }
     prog squirrelmail:locales = {
         version   = %{V_sqmail}-%{V_locale}
         url       = http://prdownloads.sourceforge.net/squirrelmail/
-        regex     = all_locales-(\d+\.[4]\.\d+-\d+)\.tar\.bz2
+        regex     = all_locales-(\d+\.[02468]\.\d+-\d+)\.tar\.bz2
     }
     prog squirrelmail:compat = {
         version   = %{V_plugin_compat}