clang-format duplicates SplitEmptyFunction: false

[robbietuk]

STIR/.clang-format

Lines 25 to 29 in a129c2f

	SplitEmptyFunction: false
	SplitEmptyRecord: true
	SplitEmptyNamespace: true
	# non-standard GNU
	SplitEmptyFunction: false

This duplication makes my CLion formatting fail. Removing this line allows the formatted to work as expected. I suggest to remove this (PR incoming).