make "adb bugreport" run "bugreport" (which invokes "dumpstate"
indirectly via system service) rather than "dumpstate", that way
even when adb is not running as root, dumpstate does run as root,
and can do things like collect VM traces.
diff --git a/adb/commandline.c b/adb/commandline.c
index 2f429ef..8781081 100644
--- a/adb/commandline.c
+++ b/adb/commandline.c
@@ -951,10 +951,8 @@
     }
 
     if(!strcmp(argv[0], "bugreport")) {
-        if (argc != 1) {
-            return 1;
-        }
-        do_cmd(ttype, serial, "shell", "dumpstate", "-", 0);
+        if (argc != 1) return usage();
+        do_cmd(ttype, serial, "shell", "bugreport", 0);
         return 0;
     }