Handle plist-multi-file output format correctly

[gerazo]

Fix for https://github.com/rizsotto/scan-build/issues/77

[rizsotto]

could you provide more details on the plist-multi-file output? the perl implementation does not support it... would not mind to add it, but i guess it needs more work then just add the flags to the argument parser. ;) builds are broken on every platform.

[gerazo]

plist-multi-file is the same as plist, but generates some extra information (used headers) into the plist xml. This information is needed by XTU analyzation in order to not drop analyzation data. We would like to use your scan-build in our XTU tooling because it is way better than the old one. Currently clang support 5 output formats: text, html, plist, plist-html, plist-multi-file as the output. The latter 3 needs a file as output, not a directory.

[gerazo]

I see that your implementation here is way more advanced than the one in the clang repo. What do you think, when will these changes be merged into clang?

[gerazo]

...and sorry for loading your servers with syntax problems. The settings are very strict. :)

[rizsotto]

thanks Zoltan, i still have the impression that it's not yet ready. (i miss to add command line arguments for the tools. also i would like to see a functional test case written for it.) anyway, there is a pending pull-request to Clang repo. you can subscribe to it if you like. and you can check the syntax on your machine too before commits. pep8 and yapf are good tools for it.

[gerazo]

I think it is ready. (One suite failed for some unknown reason.)

[rizsotto]

i've merged your pull-request to devel branch. (and did squash the commits into one.) will release when the Clang pull-request get merged. thank you!

[gerazo]

Thank you very much. Professional execution.