Problem: External header catch.hpp included in coverage

Solution: Exclude from analysis

Author: gummif

.travis.yml

@@ -36,7 +36,7 @@ matrix:
       env:
         - MATRIX_EVAL="CC=gcc-7 && CXX=g++-7" ENABLE_DRAFTS=ON COVERAGE=ON
       after_success:
-        - coveralls -r . -E ".*external.*" -E ".*CMakeFiles.*" -E ".*tests/" -E ".*demo/" -E ".*libzmq.*/" -b cppzmq-build --gcov-options '\-lp'
+        - coveralls -r . -E ".*external.*" -E ".*CMakeFiles.*" -E ".*tests/" -E ".*demo/" -E ".*libzmq.*/" -E ".*catch/" -b cppzmq-build --gcov-options '\-lp'
 
     # GCC default, draft disabled,  older libzmq with pkg-config
     - os: linux
@@ -85,4 +85,3 @@ script:
   - eval "${MATRIX_EVAL}"
   - cmake --version
   - ./ci_build.sh
-