Update hair rendered images for pbrt-v3 bugfix

4a486cd0ee92fb7bb9e518ff5eee97e20a24b636.

(The hair "alpha" angle wasn't being converted to radians before being
passed to std::sin().)

hair/curly-hair.pbrt

@@ -7,6 +7,7 @@ Film "image"
 #   "integer xresolution" [ 512 ] "integer yresolution" [ 512 ]
 #   "integer xresolution" [ 256 ] "integer yresolution" [ 256 ]
     "float scale" 4
+    "string filename" "curly-hair.exr"
 
 Camera "perspective" "float fov" [ 32 ] 
 WorldBegin

hair/straight-hair.pbrt

@@ -6,6 +6,8 @@ PixelFilter "triangle" "float xwidth" [ 1.000000 ] "float ywidth" [ 1.000000 ]
 Film "image"
    "integer xresolution" [ 1024 ] "integer yresolution" [ 1024 ]
 #   "integer xresolution" [ 512 ] "integer yresolution" [ 512 ]
+    "string filename" "straight-hair.exr"
+
 Camera "perspective" "float fov" [ 35.000000 ] 
 
 WorldBegin