Fixed compatible mode in most runtime files.

runtime/compiler/ifort.vim

@@ -1,7 +1,7 @@
 " Compiler: Intel Fortran Compiler
 " Maintainer: H Xu <xuhdev@gmail.com>
 " Version: 0.1.1
-" Last Change: 19 March 2011
+" Last Change: 2012 Apr 30
 " Homepage: http://www.vim.org/scripts/script.php?script_id=3497
 "           https://bitbucket.org/xuhdev/compiler-ifort.vim
 " License: Same as Vim
@@ -10,6 +10,8 @@ if exists('current_compiler')
     finish
 endif
 let current_compiler = 'ifort'
+let s:keepcpo= &cpo
+set cpo&vim
 
 if exists(":CompilerSet") != 2		" older Vim always used :setlocal
   command -nargs=* CompilerSet setlocal <args>
@@ -20,3 +22,6 @@ CompilerSet errorformat=
             \%A%f(%l):\ %tarning\ \#%n:\ %m,
             \%-Z%p^,
             \%-G%.%#
+
+let &cpo = s:keepcpo
+unlet s:keepcpo