Fixed error in .travis.yml file for coverage report submission.

Signed-off-by: Ted Steiner <tsteiner2@gmail.com>

.travis.yml

@@ -23,4 +23,4 @@ script:
   - julia -e 'Pkg.test("OpenStreetMap", coverage=true)'
 after_success:
   - julia -e 'cd(Pkg.dir("OpenStreetMap")); Pkg.add("Coverage"); using Coverage; Coveralls.submit(Coveralls.process_folder())'
-  - julia -e 'cd(Pkg.dir("OpenStreetMap")); using Coverage; Codecov.submit(Codecov.process_folder()))'
+  - julia -e 'cd(Pkg.dir("OpenStreetMap")); using Coverage; Codecov.submit(Codecov.process_folder())'