Fix default values for the output of the creatematrix shader definition.

There was a copy-paste typo in the fourth vector. After the fix,
the new output's default value is an identity matrix, as intended.

libraries/stdlib/stdlib_defs.mtlx

@@ -4539,15 +4539,15 @@
     <input name="in2" type="vector3" value="0.0, 1.0, 0.0" />
     <input name="in3" type="vector3" value="0.0, 0.0, 1.0" />
     <input name="in4" type="vector3" value="0.0, 0.0, 0.0" />
-    <output name="out" type="matrix44" default="1.0, 0.0, 0.0, 0.0,  0.0, 1.0, 0.0, 0.0,  0.0, 0.0, 1.0, 0.0,  1.0, 0.0, 0.0, 0.0" />
+    <output name="out" type="matrix44" default="1.0, 0.0, 0.0, 0.0,  0.0, 1.0, 0.0, 0.0,  0.0, 0.0, 1.0, 0.0,  0.0, 0.0, 0.0, 1.0" />
   </nodedef>
 
   <nodedef name="ND_creatematrix_vector4_matrix44" node="creatematrix" nodegroup="math">
     <input name="in1" type="vector4" value="1.0, 0.0, 0.0, 0.0" />
     <input name="in2" type="vector4" value="0.0, 1.0, 0.0, 0.0" />
     <input name="in3" type="vector4" value="0.0, 0.0, 1.0, 0.0" />
     <input name="in4" type="vector4" value="0.0, 0.0, 0.0, 1.0" />
-    <output name="out" type="matrix44" default="1.0, 0.0, 0.0, 0.0,  0.0, 1.0, 0.0, 0.0,  0.0, 0.0, 1.0, 0.0,  1.0, 0.0, 0.0, 0.0" />
+    <output name="out" type="matrix44" default="1.0, 0.0, 0.0, 0.0,  0.0, 1.0, 0.0, 0.0,  0.0, 0.0, 1.0, 0.0,  0.0, 0.0, 0.0, 1.0" />
   </nodedef>
 
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