Clarify comment

jkseppan · jkseppan · commit 968b06384ef3 · 2020-08-02T10:27:54.000+03:00
diff --git a/.travis.yml b/.travis.yml
@@ -104,7 +104,7 @@ matrix:
 
 before_install:
 - |
-  # Install libraries and set up ccache
+  # Install OS dependencies and set up ccache
   case "$TRAVIS_OS_NAME" in
   linux)
     export PATH=/usr/lib/ccache:$PATH
