parsers.c: do not try to untrack after a failure

parsers.c: fix integer overflows thanks to zzuf for helping finding those

Merge with crew

Use dummy diffstat in tests and remove older diffstat workaround. This makes test-notify pass on systems without diffstat installed or where the diffstat version yields a different output.

Fix test-bundle-type output by changing head|cut to cut|head. With some versions of cut the output otherwise has no end of line.

convert documentation: --config argument with spaces needs quoting.

Copy index before parsing to enforce alignment with inline data present. Fixes issue1348 (Bus error in parsers.c) on Solaris/sparc.