Fix broken 'adb root' command.

Change-Id: I75bf01863e82967a7214d3e31b8db792690716c1
diff --git a/adb/commandline.c b/adb/commandline.c
index 5d3187a..411bb82 100644
--- a/adb/commandline.c
+++ b/adb/commandline.c
@@ -929,7 +929,7 @@
 
     if(!strcmp(argv[0], "remount") || !strcmp(argv[0], "reboot")
             || !strcmp(argv[0], "tcpip") || !strcmp(argv[0], "usb")
-            || !strcmp(argv[0], "reboot")) {
+            || !strcmp(argv[0], "root")) {
         char command[100];
         if (argc > 1)
             snprintf(command, sizeof(command), "%s:%s", argv[0], argv[1]);