Non-zero exit codes in test command execution are not fatal

tests/test.sh

@@ -32,7 +32,7 @@ for TESTFILE; do
 
         # Run the test, filter the output and concatenate adjacent lines.
         eval "$COMMAND" >/dev/null 2>&1 ||
-          { cat test.log 1>&2 2>/dev/null; exit 1; }
+          printf '        Command terminated with exit code %d.\n' $?
         sed -nr '/^\s*TEST INPUT BEGIN\s*$/,/^\s*TEST INPUT END\s*$/{
           /^\s*TEST INPUT (BEGIN|END)\s*$/!H
           /^\s*TEST INPUT END\s*$/{s/.*//;x;s/\n//g;p}