Bug#867673: [checks/cruft] Microsoft help files can be built using free software

[Colin Watson <cjwatson@debian.org>]

Package: lintian
Version: 2.5.51
Severity: normal

lintian emits the source-contains-prebuilt-ms-help-file tag on putty
0.70-1.  I believe this is a false positive.  It's built using free
software (halibut, which is in Debian), and given that, it's reasonable
for upstream to provide pre-built versions of this sort of file in
source tarballs for the same reasons that it's reasonable for them to
provide e.g. pre-built configure scripts.

I'd like two things:

 * Lintian currently says that "There is Linux software to read them and
   an incomplete FreePascal related project to create them", but Halibut
   >= 1.2 can create them, so the implication that there is no complete
   free software to create them should be corrected.

 * The cruft check should exclude files generated by such free software.
   As a first pass I'd suggest excluding files that contain the string
   "Halibut,".

Thanks,

-- 
Colin Watson                                       [cjwatson@debian.org]