Patch 8.2.2811
Problem:    Vim9: error for missing white space doesn't say where it is
            missing
Solution:   Mention the command. (closes #8149)
Files:      src/ex_docmd.c, src/errors.h, src/testdir/test_vim9_cmd.vim


*** ../vim-8.2.2810/src/ex_docmd.c      2021-04-24 20:36:59.848978076 +0200
--- src/ex_docmd.c      2021-04-25 16:30:01.450904803 +0200
***************
*** 3673,3680 ****
            && (eap->cmdidx < 0 ||
                (cmdnames[eap->cmdidx].cmd_argt & EX_NONWHITE_OK) == 0))
      {
!       semsg(_(e_command_not_followed_by_white_space_str), eap->cmd);
        eap->cmdidx = CMD_SIZE;
      }
  #endif
  
--- 3673,3683 ----
            && (eap->cmdidx < 0 ||
                (cmdnames[eap->cmdidx].cmd_argt & EX_NONWHITE_OK) == 0))
      {
!       char_u *cmd = vim_strnsave(eap->cmd, p - eap->cmd);
! 
!       semsg(_(e_command_str_not_followed_by_white_space_str), cmd, eap->cmd);
        eap->cmdidx = CMD_SIZE;
+       vim_free(cmd);
      }
  #endif
  
*** ../vim-8.2.2810/src/errors.h        2021-04-19 20:49:58.156857538 +0200
--- src/errors.h        2021-04-25 16:30:26.930811717 +0200
***************
*** 323,330 ****
        INIT(= N_("E1142: Non-empty string required"));
  EXTERN char e_empty_expression_str[]
        INIT(= N_("E1143: Empty expression: \"%s\""));
! EXTERN char e_command_not_followed_by_white_space_str[]
!       INIT(= N_("E1144: Command is not followed by white space: %s"));
  EXTERN char e_missing_heredoc_end_marker_str[]
        INIT(= N_("E1145: Missing heredoc end marker: %s"));
  EXTERN char e_command_not_recognized_str[]
--- 323,330 ----
        INIT(= N_("E1142: Non-empty string required"));
  EXTERN char e_empty_expression_str[]
        INIT(= N_("E1143: Empty expression: \"%s\""));
! EXTERN char e_command_str_not_followed_by_white_space_str[]
!       INIT(= N_("E1144: Command \"%s\" is not followed by white space: %s"));
  EXTERN char e_missing_heredoc_end_marker_str[]
        INIT(= N_("E1145: Missing heredoc end marker: %s"));
  EXTERN char e_command_not_recognized_str[]
*** ../vim-8.2.2810/src/testdir/test_vim9_cmd.vim       2021-04-25 
14:48:45.500794221 +0200
--- src/testdir/test_vim9_cmd.vim       2021-04-25 16:34:22.661950212 +0200
***************
*** 984,1001 ****
    command -nargs=1 Comd echom <q-args>
  
    var lines =<< trim END
!     vim9script
!     Comd # comment
    END
    CheckScriptSuccess(lines)
  
    lines =<< trim END
!     vim9script
!     Comd# comment
    END
    CheckScriptFailure(lines, 'E1144:')
- 
    delcommand Comd
  enddef
  
  def Test_star_command()
--- 984,1009 ----
    command -nargs=1 Comd echom <q-args>
  
    var lines =<< trim END
!       vim9script
!       Comd # comment
    END
    CheckScriptSuccess(lines)
  
    lines =<< trim END
!       vim9script
!       Comd# comment
    END
    CheckScriptFailure(lines, 'E1144:')
    delcommand Comd
+ 
+   lines =<< trim END
+       vim9script
+       command Foo echo 'Foo'
+       Foo3Bar
+   END
+   CheckScriptFailure(lines, 'E1144: Command "Foo" is not followed by white 
space: Foo3Bar')
+ 
+   delcommand Foo
  enddef
  
  def Test_star_command()
*** ../vim-8.2.2810/src/version.c       2021-04-25 14:48:45.500794221 +0200
--- src/version.c       2021-04-25 16:35:35.569683300 +0200
***************
*** 752,753 ****
--- 752,755 ----
  {   /* Add new patch number below this line */
+ /**/
+     2811,
  /**/

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