more rebaselines for shadertext2 and stroketext and a couple of mandrills

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

 {
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@@ skipping 13707 matching lines @@
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@@ skipping 1125 matching lines @@
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@@ skipping 1366 matching lines @@
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