fix tcl configuration parse error

[A2ureStone]

#1743

[cr-gpt]

Overall, the code patch seems to involve changes in handling and writing configuration directives. Here are some observations and suggestions:

1. Line 178: set arguments [lrange $elements 2 end] appears to be an incorrect change. It should remain as set arguments [lrange $elements 1 end] to capture the correct arguments.

2. Lines 202-206: The conditions for writing directive values could be simplified. Instead of explicitly checking for "port," "requirepass," and "userpass" directives, you can use a generic approach to handle all directives.

   Here's an example of how you can simplify those lines:

   puts -nonewline $fp "$directive : "
   puts $fp [dict get $config $directive]
   

3. Line 210: In the case of the "dump_prefix" directive, there is an extra space after the colon ":". To align with the existing code, use puts $fp "$directive:" instead.

4. Consider adding error handling for file operations like opening and closing files. You can use catch or try to handle any exceptions that might occur during file operations.

5. It would be helpful to include comments in the code to explain the purpose of certain sections or highlight any complex logic.

Remember to thoroughly test the code after making these modifications, especially the changes related to reading and writing configuration directives, to ensure they work as expected.