API of math caption should be revised

[Ducasse]

Here is what I forced to write in the rule checker.

checkMissingPeriodInMath: aMath

	| captionText |
	"clearly a problem in math caption"
	
	captionText := (aMath captionElements  collect: [ :each | each text ]).
	captionText ifEmpty: [ ^ self ]. 
	
	captionText trimRight last = $. ifFalse: [
			results add: (MicPeriodInCaptionResult new
					 micElement: aMath;
					 inFile: aMath fromFile;
					 codeShouldEndWithPeriod: codeShouldEndWithPeriod) ]

caption is defined as

caption

	^ (self arguments at: #caption ifAbsent: [ ^ 'No Caption' ]) printString

and we end up with anArray (....)

totally wrong