dumpstate: Continued build breakage

- drop assignment length in scanf
- drop -std=gnu99 as invalid for C++

Change-Id: I924d2561069b3c289cb9deb475f732c46bb5a67e
diff --git a/cmds/dumpstate/Android.mk b/cmds/dumpstate/Android.mk
index b0cecdd..4d00d53 100644
--- a/cmds/dumpstate/Android.mk
+++ b/cmds/dumpstate/Android.mk
@@ -16,7 +16,7 @@
 
 LOCAL_SHARED_LIBRARIES := libcutils liblog libselinux
 LOCAL_HAL_STATIC_LIBRARIES := libdumpstate
-LOCAL_CFLAGS += -Wall -Werror -Wno-unused-parameter -std=gnu99
+LOCAL_CFLAGS += -Wall -Werror -Wno-unused-parameter
 LOCAL_INIT_RC := dumpstate.rc
 
 include $(BUILD_EXECUTABLE)