File psl-1983/20-tests/test-guide.err from the latest check-in

@Comment{ErrLog of TEST-GUIDE.MSS.17 by Scribe 3C(1254) on 24 July 1982 at 13:19}

Error in MAINN command found while processing the manuscript.
TEST-GUIDE.MSS.17 line 287:  @@EX @MAINn.CMD
The name @MAINN is not defined in document type article.