Follow-up Comment #3, bug #64624 (project groff):
I used "test-nroff" (uses "test-groff" instead of "groff" in
"nroff") which does not provide the file name.
Using "naked" diff does not provide the surroundings to pinpoint the
place where the difference occurs.
So you have an extra line with three zeros.
I should have begun with the start of the pipe, namely "pic":
Output of "pic test.pic" (I use a different file name) is in the
attachment, use "diff -u".
My input file "prof.pic" is in the attachment, compare with yours.
(file #55116, file #55117)
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Additional Item Attachment:
File name: 64624.pic.out Size:0 KB
<https://file.savannah.gnu.org/file/64624.pic.out?file_id=55116>
File name: prof.pic Size:0 KB
<https://file.savannah.gnu.org/file/prof.pic?file_id=55117>
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