Aaron Ballman 70964d42ea Fix exporting SARIF files from scan-build on Windows.
In Perl, -z is defined as checking if a "file has zero size" and makes no mention what it does when given a directory. It looks like the behavior differs across platforms, which is why on Windows the SARIF file was always being deleted.

Patch by Joe Ranieri.

llvm-svn: 366941
2019-07-24 20:03:27 +00:00
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