unique modversion, not N1

Change-Id: Ifb3ff1312f3e58df31dc39a7454b31d82b6d6704
diff --git a/products/cyanogen_crespo.mk b/products/cyanogen_crespo.mk
index 0e7bc3b..01e2271 100644
--- a/products/cyanogen_crespo.mk
+++ b/products/cyanogen_crespo.mk
@@ -34,10 +34,10 @@
 #
 ifdef CYANOGEN_NIGHTLY
     PRODUCT_PROPERTY_OVERRIDES += \
-        ro.modversion=CyanogenMod-7-$(shell date +%m%d%Y)-NIGHTLY-N1
+        ro.modversion=CyanogenMod-7-$(shell date +%m%d%Y)-NIGHTLY-NS
 else
     PRODUCT_PROPERTY_OVERRIDES += \
-        ro.modversion=CyanogenMod-7.0.0-RC0-N1
+        ro.modversion=CyanogenMod-7.0.0-RC0-NS
 endif
 
 #