- Normalize the 'Swig_error' calls and formats, before some

of the strings start like "Error. XXX", others like "XXX".
  The format is now defined in 'error.c:Swig_error_msg_format()'.

- Normalize the multiline error/warning messages to correctly
  use -Fformat definition.

- Centralize the error/warning format definitions in
  'error.c:Swig_error_msg_format()'.

- Fix a minor error in cpp.c, that after finding an error, still
  was emitting a redefined macro, producing duplicated error/warning
  messages in parser.y.


git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@5635 626c5289-ae23-0410-ae9c-e8d60b6d4f22

SWIG/Source/Modules/emit.cxx

@@ -252,7 +252,7 @@ int emit_num_required(ParmList *parms) {
       p = Getattr(p,"tmap:in:next");
     } else {
       if (!Getattr(p,"value") && (!Getattr(p,"tmap:default"))) {
-	Swig_error(Getfile(p),Getline(p),"Error. Non-optional argument '%s' follows an optional argument.\n",Getattr(p,"name"));
+	Swig_error(Getfile(p),Getline(p),"Non-optional argument '%s' follows an optional argument.\n",Getattr(p,"name"));
       }
       if (Getattr(p,"tmap:in")) {
 	p = Getattr(p,"tmap:in:next");