Dirstack with spaces in paths causes issues.

So for now, I'm burning a process on every command, to check for its
size by linecount.

tcshrc.prompt.final

@@ -366,8 +366,7 @@ if( ! $?CSHENV_DISABLE_PROMPT_PATH ) then
     set path_prompt_view="%{${path_color_seq}%}${path_prompt}%{${sgr_reset}%}"
 endif
 if( ! $?CSHENV_DISABLE_PROMPT_DIRS ) then
-	set dir_list=`dirs`
-	set dirs_prompt="${#dir_list}"
+	set dirs_prompt="${#dirstack}"
 	if( ${dirs_prompt} > 1 ) then
 		set dirs_prompt_view=" {%{${dirs_color_seq}%}${dirs_prompt}%{${sgr_reset}%}}"
 	endif