fix tabs

.travis.yml

@@ -10,12 +10,12 @@ matrix:
 # Don't try to do Coverity or coverage builds on mac
   - os: osx
     env: COVERITY=1
-	env: COVERAGE=1
+    env: COVERAGE=1
 # Only do coverity or coverage build on Linux when the compiler is gcc
   - os: linux
     compiler: clang
     env: COVERITY=1
-	env: COVERAGE=1
+    env: COVERAGE=1
 # Don't build with clang on Linux
   - os: linux
     compiler: clang