Using hypens instead of underscores for set-terminal-title command

doc/long-help.txt

@@ -160,7 +160,7 @@ Options:
       --acknowledgements
           Show acknowledgements.
 
-      --set_terminal_title
+      --set-terminal-title
           Sets terminal title to filenames when using a pager.
 
   -h, --help

src/bin/bat/app.rs

@@ -287,7 +287,7 @@ impl App {
             use_custom_assets: !self.matches.get_flag("no-custom-assets"),
             #[cfg(feature = "lessopen")]
             use_lessopen: self.matches.get_flag("lessopen"),
-            set_terminal_title: self.matches.get_flag("set_terminal_title"),
+            set_terminal_title: self.matches.get_flag("set-terminal-title"),
         })
     }
 

src/bin/bat/clap_app.rs

@@ -569,8 +569,8 @@ pub fn build_app(interactive_output: bool) -> Command {
                 .help("Show acknowledgements."),
         )
         .arg(
-            Arg::new("set_terminal_title")
-                .long("set_terminal_title")
+            Arg::new("set-terminal-title")
+                .long("set-terminal-title")
                 .action(ArgAction::SetTrue)
                 .hide_short_help(true)
                 .help("Sets terminal title to filenames when using a pager."),

tests/integration_tests.rs

@@ -927,7 +927,7 @@ fn pager_set_terminal_title() {
     bat()
         .env("PAGER", mocked_pagers::from("echo pager-output"))
         .arg("--paging=always")
-        .arg("--set_terminal_title")
+        .arg("--set-terminal-title")
         .arg("test.txt")
         .assert()
         .success()