Update gltf_content.py

Author: romanarust

src/compas/files/gltf/gltf_content.py

@@ -548,12 +548,7 @@ def visit(node, key):
 
     # add extension
     pbr_specular_glossiness = KHR_materials_pbrSpecularGlossiness()
-    pbr_specular_glossiness.diffuse_factor = [
-        0.980392158,
-        0.980392158,
-        0.980392158,
-        1.0,
-    ]
+    pbr_specular_glossiness.diffuse_factor = [0.980392158, 0.980392158, 0.980392158, 1.0]
     pbr_specular_glossiness.specular_factor = [0.0, 0.0, 0.0]
     pbr_specular_glossiness.glossiness_factor = 0.0
     texture_transform = KHR_Texture_Transform()