feat! treat warnings as errors by default

Add a --merciful option to subcommands for which this matters. Adjust
tests to invoke subplot with that option as necessary.

Sponsored-by: author

1 files changed, 1 insertions, 0 deletions

diff --git a/check b/check
index 9dac5d8..f9b331c 100755
--- a/check
+++ b/check
@@ -178,6 +178,7 @@ class Runcmd:
                 "metadata",
                 "-o",
                 "json",
+                "--merciful",
                 filename,
             ],
             stdout=PIPE,