Travis: check bolt quotes.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

.travis.yml

@@ -19,4 +19,5 @@ script:
   - docker run --rm=true -v "${TRAVIS_BUILD_DIR}":/build -t cdecker/lightning-ci:${ARCH}bit make -j3 DEVELOPER=${DEVELOPER}
   - echo "travis_fold:end:SCRIPT folding ends"
   - docker run --rm=true -e NO_VALGRIND=${NO_VALGRIND:-0} -e TEST_DEBUG=${TEST_DEBUG:-0} -v "${TRAVIS_BUILD_DIR}":/build -t cdecker/lightning-ci:${ARCH}bit make check DEVELOPER=${DEVELOPER}
-  - docker run --rm=true -v "${TRAVIS_BUILD_DIR}":/build -t cdecker/lightning-ci:${ARCH}bit make check-source
+  - git clone https://github.com/lightningnetwork/lightning-rfc.git
+  - docker run --rm=true -v "${TRAVIS_BUILD_DIR}":/build -t cdecker/lightning-ci:${ARCH}bit make check-source BOLTDIR=lightning-rfc