Prevent FileCheck output on large files without newlines

Hi all,
I’m using FileCheck with as input a large file without newlines. The trouble I’m having is that if no match is found for a check, that FileCheck output a very large amount of text because it is printing the input file line context “scanning from here”, and that input file is a single line and thus very large.

Is there a way to have FileCheck report which CHECK failed, but without reporting the line context? I’ve tried --dump-input=never but that is no help (because it seems to control an even more verbose output.).
I think there is no solution and this is a feature request for FileCheck…

Thanks for your help,
Johan