Clean out urfave/cli.v2.a, wrap long line

.travis.yml

@@ -38,6 +38,7 @@ before_script:
 - go get github.com/urfave/gfmxr/...
 - mkdir -p ${GOPATH%%:*}/src/gopkg.in/urfave
 - rm -rvf ${GOPATH%%:*}/src/gopkg.in/urfave/cli.v2
+- rm -rvf ${GOPATH%%:*}/pkg/*/gopkg.in/urfave/cli.v2.a
 - ln -sv ${TRAVIS_BUILD_DIR} ${GOPATH%%:*}/src/gopkg.in/urfave/cli.v2
 
 script:

appveyor.yml

@@ -20,6 +20,7 @@ install:
 - go env
 - go get github.com/urfave/gfmxr/...
 - rmdir c:\gopath\src\gopkg.in\urfave\cli.v2 /s /q
+- rmdir c:\gopath\pkg /s /q
 - git clone . c:\gopath\src\gopkg.in\urfave\cli.v2
 - go get -v -t ./...
 - if not exist node_modules\.bin\markdown-toc npm install markdown-toc

cli-v1-to-v2

@@ -294,7 +294,9 @@ def _context_parent(source):
 
 @_migrator
 def _app_init(source):
-    return re.sub('cli\\.NewApp\\(\\)', '(&cli.App{})', source, flags=re.UNICODE)
+    return re.sub(
+        'cli\\.NewApp\\(\\)', '(&cli.App{})', source, flags=re.UNICODE
+    )
 
 
 def test_migrators():