Fixed compatible mode in most runtime files.

runtime/compiler/g95.vim

@@ -1,7 +1,7 @@
 " Compiler: G95
 " Maintainer: H Xu <xuhdev@gmail.com>
 " Version: 0.1.3
-" Last Change: 2011 Apr 01
+" Last Change: 2012 Apr 30
 " Homepage: http://www.vim.org/scripts/script.php?script_id=3492
 "           https://bitbucket.org/xuhdev/compiler-g95.vim
 " License: Same as Vim
@@ -10,6 +10,8 @@ if exists('current_compiler')
     finish
 endif
 let current_compiler = 'g95'
+let s:keepcpo= &cpo
+set cpo&vim
 
 if exists(":CompilerSet") != 2		" older Vim always used :setlocal
   command -nargs=* CompilerSet setlocal <args>
@@ -21,3 +23,6 @@ CompilerSet errorformat=
             \%-Z%trror:\ %m,
             \%-Z%tarning\ (%n):\ %m,
             \%-C%.%#
+
+let &cpo = s:keepcpo
+unlet s:keepcpo