[LyX/master] Add comment about coverity #23335.

[Richard Heck]

commit 9d49f09bcf1061103c3dfafaac245bb45de9dcf2
Author: Richard Heck <rgh...@lyx.org>
Date:   Sat Jun 11 22:59:01 2016 -0400

    Add comment about coverity #23335.

diff --git a/src/Trans.cpp b/src/Trans.cpp
index 9249e8e..ed73c77 100644
--- a/src/Trans.cpp
+++ b/src/Trans.cpp
@@ -287,6 +287,10 @@ int Trans::load(Lexer & lex)
                        allowed = lex.getDocString();
                        LYXERR(Debug::KBMAP, "allowed: " << to_utf8(allowed));
 
+                       // FIXME Coverity
+                       // This is being flagged because we could in principle 
fail
+                       // ever to hit the break above, in which case we exit 
the loop
+                       // when it == end. Then this crashes.
                        insertException(kmod_list_[accent_1].exception_list,
                                        it->first, allowed, true, accent_2);
                }