Remove some unwanted white space in Makefile
diff --git a/Makefile b/Makefile
index 05c9478..c10f717 100644
--- a/Makefile
+++ b/Makefile
@@ -49,7 +49,7 @@
 endif
 
 ifeq ($(KBUILD_VERBOSE),1)
-  quiet =
+  quiet=
   Q =
 else
   quiet=quiet_