By default, tangled output includes comments about the line and section numbers corresponding to the current piece of code. To eliminate this clutter, say ‘-#’. (But note that the line-number information is very useful for debugging in C and C++, as it enables the debugger to display the source line in the web file.)
In some cases, bugs in tangled output, particularly from FORTRAN, can be eliminated by using ‘-#’. (But please report the bug anyway; Support.)
In some cases, it is useful to turn off the line- and section-number information locally. This can be done with the ‘@q’ command. See ATq.