Trivial cleanup of recent changes.

A typo in the documentation for one, and a couple of signed/unsigned warnings
in the implementation of the other.

Change-Id: I8fb4b7448ac901c543dea7420aabcedf13ec1bd8
diff --git a/init/Android.mk b/init/Android.mk
index 4df4489..606c199 100644
--- a/init/Android.mk
+++ b/init/Android.mk
@@ -17,7 +17,11 @@
 	ueventd_parser.c \
 	watchdogd.c
 
-LOCAL_CFLAGS    += -Wno-unused-parameter
+LOCAL_CFLAGS += \
+    -std=gnu11 \
+    -Wall \
+    -Werror -Wno-error=deprecated-declarations \
+    -Wno-unused-parameter \
 
 ifeq ($(strip $(INIT_BOOTCHART)),true)
 LOCAL_SRC_FILES += bootchart.c