You can't have colon-space in unquoted YAML (plain scalars)

Signed-off-by: Gilles Peskine <[email protected]>

.travis.yml

@@ -54,7 +54,7 @@ jobs:
         - tests/scripts/test_psa_constant_names.py
         # Exclude a few test cases that are failing mysteriously.
         # https://github.com/Mbed-TLS/mbedtls/issues/6660
-        - tests/ssl-opt.sh -e 'Fallback SCSV: .*list'
+        - tests/ssl-opt.sh -e 'Fallback SCSV:\ .*list'
         # Modern OpenSSL does not support fixed ECDH, null or ancient ciphers.
         - tests/compat.sh -p OpenSSL -e 'NULL\|ECDH-\|DES\|RC4'
         - tests/scripts/travis-log-failure.sh