If any of the \fB\-R\fP, \fB-U\fP, or \fB-Z\fP options is given, each
file is scanned as an archive file that may contain ELF/DWARF/source
files. Archive files are recognized by extension. If \-R is given,
-".rpm" files are scanned; if \-D is given, ".deb" and ".ddeb" files
+".rpm" files are scanned; if \-U is given, ".deb" and ".ddeb" files
are scanned; if \-Z is given, the listed extensions are scanned.
Because of complications such as DWZ-compressed debuginfo, may require
\fItwo\fP traversal passes to identify all source code. Source files