Fixed compatible mode in most runtime files.
diff --git a/runtime/compiler/decada.vim b/runtime/compiler/decada.vim
index 8e267ec..4670bbd 100644
--- a/runtime/compiler/decada.vim
+++ b/runtime/compiler/decada.vim
@@ -15,6 +15,9 @@
 "    Help Page: compiler-decada
 "------------------------------------------------------------------------------
 
+let s:keepcpo= &cpo
+set cpo&vim
+
 if (exists("current_compiler")	    &&
    \ current_compiler == "decada")  ||
    \ version < 700
@@ -44,6 +47,9 @@
 execute "CompilerSet makeprg="     . escape (g:decada.Make_Command, ' ')
 execute "CompilerSet errorformat=" . escape (g:decada.Error_Format, ' ')
 
+let &cpo = s:keepcpo
+unlet s:keepcpo
+
 finish " 1}}}
 
 "------------------------------------------------------------------------------