[REF] [merge custom fields function] Stop returning unaltered cFields parameter (good unit test cover)

[eileenmcnaughton]

Overview

Stop returning unaltered cFields parameter

Before

The cryptically named $cFields (parameter is returned unchanged from the function

After

The function does not return the unchanged variable & the calling code uses the value it already had

Technical Details

FWIW the 'c' stands for '$custom` - I will try to ensure we don't have this 'guess what I mean' variables by the end.

Comments

[civibot]

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[eileenmcnaughton]

thanks @demeritcowboy