It would have been obvious with better layout in emacs with any perl mode too because the indentation breaks. I suspect vim has similar behavior. So just changing to shorter, more legible line widths will help on a couple of levels-

img({ -src=>'/css/ico/notepencil32.png',
      -alt=>'ahoj',
      -height=>'23',
      -width=>'23'
          -id=>'myid'})
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