Fix tools/r8_get.py

Change-Id: I652d1f748d0dd105a1fdd9f023c4317eb3085141
diff --git a/tools/r8_get.py b/tools/r8_get.py
index 44cc9f1..4dfc924 100755
--- a/tools/r8_get.py
+++ b/tools/r8_get.py
@@ -21,13 +21,18 @@
         '--outdir',
         help='Output directory to place the r8.jar in (default cwd).',
         default=None)
+    parser.add_argument(
+        '--nolib',
+        help='Use the non-lib distribution (default uses the lib distribution)',
+        default=False,
+        action='store_true')
     return parser.parse_args()
 
 
 def main():
     args = parse_arguments()
     outdir = args.outdir if args.outdir else ''
-    print(compiledump.download_distribution(args.version, True, outdir))
+    print(compiledump.download_distribution(args.version, args, outdir))
     return 0