Correct formatting for user-defined arrays

[metthal]

As pointed out in #170, autoformatting of user-defined arrays is not handled completely right because it doesn't indent the inner content of the enumeration of the expressions. Please make it so that these user-defined arrays are formatted like this

	condition:
		1 of [
			cuckoo.sync.mutex(/a/),
			cuckoo.sync.mutex(/b/)
		]

[TadeasKucera]

Thank you Marek for the fix in #170. I also fixed the incorrect indenting within the [] brackets in #172 .

[TadeasKucera]

Resolved in #170 and #172