README: Document passing environment variables

Link: https://lore.kernel.org/ltp/[email protected]/ Reviewed-by: Andrea Cervesato <[email protected]> Signed-off-by: Petr Vorel <[email protected]>
acerv · Jun 10, 2024 · 5e8c806 · 5e8c806
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@@ -104,6 +104,10 @@ Some basic commands are the following:
   --sut ssh:host=myhost.com:user=root:key_file=myhost_id_rsa \
   --run-suite syscalls --workers 16
 
+ # pass environment variables (list of key=value separated by ':')
+ ./kirk --framework ltp --run-suite net.features \
+  --env 'VIRT_PERF_THRESHOLD=180:LTP_NET_FEATURES_IGNORE_PERFORMANCE_FAILURE=1'
+
 It's possible to run a single command before running testing suites using
 `--run-command` option as following: