fix codecov

Author: dlfivefifty

.travis.yml

@@ -15,7 +15,7 @@ matrix:
 notifications:
   email: false
 after_success:
-    - julia -e 'cd(Pkg.dir("FillArrays")); Pkg.add("Coverage"); using Coverage; Codecov.submit(Codecov.process_folder())'
+    - julia -e 'using Pkg; Pkg.add("Coverage"); using Coverage; Codecov.submit(process_folder())'
 #   - julia -e 'Pkg.add("Documenter")'
 #   - julia -e 'cd(Pkg.dir("FillArrays")); include(joinpath("docs", "make.jl"))'