Patch 7.4.233
Problem:    Escaping special characters for using "%" with a shell command is
            inconsistant, parenthesis are escaped but spaces are not.
Solution:   Only escape "!". (Gary Johnson)
Files:      src/ex_docmd.c


*** ../vim-7.4.232/src/ex_docmd.c       2014-04-01 17:49:40.140891378 +0200
--- src/ex_docmd.c      2014-04-01 18:26:16.036861171 +0200
***************
*** 4580,4604 ****
  
        /* For a shell command a '!' must be escaped. */
        if ((eap->usefilter || eap->cmdidx == CMD_bang)
!                           && vim_strpbrk(repl, (char_u *)"!&;()<>") != NULL)
        {
            char_u      *l;
  
!           l = vim_strsave_escaped(repl, (char_u *)"!&;()<>");
            if (l != NULL)
            {
                vim_free(repl);
                repl = l;
-               /* For a sh-like shell escape "!" another time. */
-               if (strstr((char *)p_sh, "sh") != NULL)
-               {
-                   l = vim_strsave_escaped(repl, (char_u *)"!");
-                   if (l != NULL)
-                   {
-                       vim_free(repl);
-                       repl = l;
-                   }
-               }
            }
        }
  
--- 4580,4594 ----
  
        /* For a shell command a '!' must be escaped. */
        if ((eap->usefilter || eap->cmdidx == CMD_bang)
!                           && vim_strpbrk(repl, (char_u *)"!") != NULL)
        {
            char_u      *l;
  
!           l = vim_strsave_escaped(repl, (char_u *)"!");
            if (l != NULL)
            {
                vim_free(repl);
                repl = l;
            }
        }
  
*** ../vim-7.4.232/src/version.c        2014-04-01 17:49:40.144891378 +0200
--- src/version.c       2014-04-01 18:54:13.276838100 +0200
***************
*** 736,737 ****
--- 736,739 ----
  {   /* Add new patch number below this line */
+ /**/
+     233,
  /**/

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