Minor comment.

Offshoot of bf99ece7366ad.
https://mailman.ntg.nl/pipermail/ntg-pdftex/2019-August/004306.html

diff --git a/src/LaTeX.cpp b/src/LaTeX.cpp
index cae5967c311b7b0c13571ce93be6e6598719b4e3..e68e07c71f921807ebb1bcee5b5348cb01657cee 100644 (file)
--- a/src/LaTeX.cpp
+++ b/src/LaTeX.cpp
@@ -774,6 +774,9 @@ int LaTeX::scanLogFile(TeXErrors & terr)
                //Handles both "LaTeX Warning:" & "Package natbib Warning:"
                //Various handlers for missing citations below won't catch the problem if citation
                //key is long (>~25chars), because pdflatex splits output at line length 80.
+               //TODO: TL 2020 engines will contain new commandline switch --cnf-line which we  
+               //can use to set max_print_line variable for appropriate length and detect all
+               //errors correctly.
                if (contains(token, "There were undefined citations."))
                        retval |= UNDEF_CIT;