utils/check-package: Add a quiet flag

When running in a CI system, stat messages become white noise. Introduce
an option to suppress non-error, non-warning, messages.

Signed-off-by: Brandon Maier <brandon.maier@rockwellcollins.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

utils/check-package

@@ -33,6 +33,7 @@ def parse_args():
                         default="http://nightly.buildroot.org/",
                         help="default: %(default)s")
     parser.add_argument("--verbose", "-v", action="count", default=0)
+    parser.add_argument("--quiet", "-q", action="count", default=0)
 
     # Now the debug options in the order they are processed.
     parser.add_argument("--include-only", dest="include_list", action="append",
@@ -177,8 +178,10 @@ def __main__():
     # (e.g. counted by 'wc'), so for stats use stderr. Wait all warnings are
     # printed, for the case there are many of them, before printing stats.
     sys.stdout.flush()
-    print("{} lines processed".format(total_lines), file=sys.stderr)
-    print("{} warnings generated".format(total_warnings), file=sys.stderr)
+
+    if not flags.quiet:
+        print("{} lines processed".format(total_lines), file=sys.stderr)
+        print("{} warnings generated".format(total_warnings), file=sys.stderr)
 
     if total_warnings > 0:
         sys.exit(1)