Reject /usr and /usr/ as possible rpm files

These should not be handled paths for autospec. This is a bit of a
hack to work around the rpm build logs being incomplete however and
might be worth reverting if the log issue is fixed.

Signed-off-by: William Douglas <william.douglas@intel.com>

Author: William Douglas

autospec/build.py

@@ -215,6 +215,8 @@ def parse_build_results(self, filename, returncode, filemanager, config, require
             elif infiles == 1 and "not matching the package arch" not in line:
                 # exclude blank lines from consideration...
                 file = line.strip()
+                if file in ("/usr", "/usr/"):
+                    self.must_restart += 1
                 if file and file[0] == "/":
                     filemanager.push_file(file, content.name)