Merge pull request #6874 from JanneKro/master

#6871 Use the variable 'cam_file' instead of trying to read 'activeDocument'

src/Mod/Path/PathScripts/post/nccad_post.py

@@ -71,7 +71,7 @@ HEADER = """;Exported by FreeCAD
 ;CAM file: {}
 ;Output Time: {}
 """.format(
-    __name__, FreeCAD.ActiveDocument.FileName, str(datetime.datetime.now())
+    __name__, cam_file, str(datetime.datetime.now())
 )