rebaseline shadertext2 shadertext3 and stroketext (sans 2)

expectations/gm/Test-Win7-ShuttleA-HD2000-x86_64-Debug/expected-results.json

 {
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   }, 
   "expected-results": {
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       "allowed-digests": [
@@ skipping 10585 matching lines @@
       ], 
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         [
           "bitmap-64bitMD5", 
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+          4721382661721666101
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           "bitmap-64bitMD5", 
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+          17353877458368015149
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+      "ignore-failure": false, 
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     }, 
     "shadertext3_8888.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
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+          15348462621046294022
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+      "ignore-failure": false, 
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     }, 
     "shadertext3_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          16365182751615069582
+          13394212856950326493
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     }, 
     "shadertext3_pdf-poppler.png": {
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         ]
@@ skipping 1897 matching lines @@
           14019814087375927425
         ]
       ], 
       "bugs": [
         1578
       ], 
       "reviewed-by-human": false
     }
   }
 }