Fix rev

Author: blegat

.travis.yml

@@ -24,6 +24,6 @@ jobs:
       julia: 1.0
       os: linux
       script:
-        - julia --project=docs -e 'using Pkg; Pkg.instantiate(); Pkg.add(PackageSpec(path=pwd()), rev="release-0.2")'
+        - julia --project=docs -e 'using Pkg; Pkg.instantiate(); Pkg.add(PackageSpec(path=pwd(), rev="release-0.2"))'
         - DOCUMENTER_DEBUG=true julia --project=docs --color=yes docs/make.jl
       after_success: skip