Line 212 of '/home/andy/git/other/ast/src/cmd/ksh93/tests/arrays.sh'
  if	[[ ${!foovar@} != +(foovar[[:alnum:]]?([ ])) ]]
    	                   ^
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Line 212 of '/home/andy/git/other/ast/src/cmd/ksh93/tests/arrays.sh'
  if	[[ ${!foovar@} != +(foovar[[:alnum:]]?([ ])) ]]
    	^~
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