more rebaselines for shadertext2 and stroketext and a couple of mandrills

expectations/gm/Test-Mac10.8-MacMini4.1-GeForce320M-x86-Release/expected-results.json

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@@ skipping 12811 matching lines @@
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@@ skipping 1041 matching lines @@
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@@ skipping 1297 matching lines @@
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