From 3600e9832dff3927dd62bcfe60593d3f43ba77a4 Mon Sep 17 00:00:00 2001
From: Petr Viktorin <pviktori@redhat.com>
Date: Jul 18 2019 07:24:02 +0000
Subject: Adjust help and error messages


---

diff --git a/pyproject_buildrequires.py b/pyproject_buildrequires.py
index b253ad2..a6ebc57 100644
--- a/pyproject_buildrequires.py
+++ b/pyproject_buildrequires.py
@@ -199,7 +199,7 @@ def main(argv):
     )
     parser.add_argument(
         '-r', '--runtime', action='store_true',
-        help='Generate run-time requirements (not implemented)',
+        help='Generate run-time requirements',
     )
     parser.add_argument(
         '-t', '--toxenv', metavar='TOXENVS',
@@ -210,7 +210,10 @@ def main(argv):
     args = parser.parse_args(argv)
     if args.toxenv:
         args.runtime = True
-        print_err('--toxenv is not implemented')
+        print_err('-t (--toxenv) is not implemented')
+        exit(1)
+    if args.extras and not args.runtime:
+        print_err('-x (--extras) are only useful with -r (--runtime)')
         exit(1)
 
     freeze_output = subprocess.run(