Default Porting Question

I want to port a Rom to i9500
But the problem is the Port rom does have a set_perm LINES in UPADTER_SCRIPT
But I cant find in Base rom set_perm LINES in UPDATER_SCRIPT
My question is can I continue without copying set_perm LINES to Base?
Device : GT-I9500
ROM(s) : Stock 4.4.2
CyanogenMod11
Crash Rom
@The Same Device



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