Document the adb install -d option.
Change-Id: Ife0da42c22e4408dc5c07ac0f20e0ecbbde20832
diff --git a/adb/commandline.c b/adb/commandline.c
index c9bb437..61167b2 100644
--- a/adb/commandline.c
+++ b/adb/commandline.c
@@ -133,10 +133,11 @@
" adb forward --remove <local> - remove a specific forward socket connection\n"
" adb forward --remove-all - remove all forward socket connections\n"
" adb jdwp - list PIDs of processes hosting a JDWP transport\n"
- " adb install [-l] [-r] [-s] [--algo <algorithm name> --key <hex-encoded key> --iv <hex-encoded iv>] <file>\n"
+ " adb install [-l] [-r] [-d] [-s] [--algo <algorithm name> --key <hex-encoded key> --iv <hex-encoded iv>] <file>\n"
" - push this package file to the device and install it\n"
" ('-l' means forward-lock the app)\n"
" ('-r' means reinstall the app, keeping its data)\n"
+ " ('-d' means allow version code downgrade)\n"
" ('-s' means install on SD card instead of internal storage)\n"
" ('--algo', '--key', and '--iv' mean the file is encrypted already)\n"
" adb uninstall [-k] <package> - remove this app package from the device\n"