src/main.rs: update mount help

src/main.rs

@@ -229,6 +229,8 @@ struct Mount {
     /// - Version view: The `.mount` directory contains the results folder and
     ///   every file within it becomes a directory storing every version of
     ///   that file
+    ///
+    /// This option is deactivated when used with --diff
     #[clap(short, long, takes_value = false)]
     versions: bool,
     /// Displays the differences between two files mounted corresponding to the
@@ -236,8 +238,6 @@ struct Mount {
     ///
     /// Note that if only one file is recovered then, the other is taken from
     /// the current result folder
-    ///
-    /// This option is deactivated when used with --diff
     #[clap(short, long, takes_value = false)]
     diff: bool,
     /// Consider last N archive after  other filter were applied