Rename --no-display to --no-mirror

The option impacts both video and audio playback, so "no display" is not
an appropriate name.

PR #3978 <https://github.com/Genymobile/scrcpy/pull/3978>

doc/recording.md

@@ -18,7 +18,7 @@ _It is currently not possible to record only the audio._
 To disable mirroring while recording:
 
 ```bash
-scrcpy --no-display --record=file.mp4
+scrcpy --no-mirror --record=file.mp4
 scrcpy -Nr file.mkv
 # interrupt recording with Ctrl+C
 ```

doc/v4l2.md

@@ -35,7 +35,7 @@ To start `scrcpy` using a v4l2 sink:
 
 ```bash
 scrcpy --v4l2-sink=/dev/videoN
-scrcpy --v4l2-sink=/dev/videoN --no-display  # disable mirroring window
+scrcpy --v4l2-sink=/dev/videoN --no-mirror  # disable mirroring window
 ```
 
 (replace `N` with the device ID, check with `ls /dev/video*`)

doc/video.md

@@ -159,15 +159,15 @@ scrcpy --display-buffer=50 --v4l2-buffer=300
 ```
 
 
-## No display
+## No mirror
 
 It is possible to capture an Android device without displaying a mirroring
 window. This option is available if either [recording](recording.md) or
 [v4l2](#video4linux) is enabled:
 
 ```bash
-scrcpy --v4l2-sink=/dev/video2 --no-display
-scrcpy --record=file.mkv --no-display
+scrcpy --v4l2-sink=/dev/video2 --no-mirror
+scrcpy --record=file.mkv --no-mirror
 ```
 
 ## Video4Linux