added set_terminal_title arg to clap_app.rs to fix ci errors

doc/long-help.txt

@@ -50,9 +50,6 @@ Options:
       --diff-context <N>
           Include N lines of context around added/removed/modified lines when using '--diff'.
 
-      --set_terminal_title
-          Sets terminal title to filenames when using a pager.
-
       --tabs <T>
           Set the tab width to T spaces. Use a width of 0 to pass tabs through directly
 
@@ -163,6 +160,9 @@ Options:
       --acknowledgements
           Show acknowledgements.
 
+      --set_terminal_title
+          Sets terminal title to filenames when using a pager.
+
   -h, --help
           Print help (see a summary with '-h')
 

doc/short-help.txt

@@ -21,8 +21,6 @@ Options:
           Specify the name to display for a file.
   -d, --diff
           Only show lines that have been added/removed/modified.
-      --set_terminal_title
-          Sets terminal title when using a pager
       --tabs <T>
           Set the tab width to T spaces.
       --wrap <mode>