zkat / pacote / 958 / 4

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travis-ci

fix(errors): Fix "TypeError: err.code.match is not a function" error (#170)

I hit this on CI running npm v6.7.0 a couple times, and then the error
went away before I could find out what the root cause was, but the issue
sounds worth resolving anyways.

Here is the stacktrace I could recover:

```
npm info teardown Done in 0s
npm verb stack TypeError: err.code.match is not a function
npm verb stack     at BB.try.catch.err (/usr/lib/node_modules/npm/node_modules/pacote/lib/with-tarball-stream.js:110:55)
npm verb stack     at tryCatcher (/usr/lib/node_modules/npm/node_modules/bluebird/js/release/util.js:16:23)
npm verb stack     at Promise._settlePromiseFromHandler (/usr/lib/node_modules/npm/node_modules/bluebird/js/release/promise.js:512:31)
npm verb stack     at Promise._settlePromise (/usr/lib/node_modules/npm/node_modules/bluebird/js/release/promise.js:569:18)
npm verb stack     at Promise._settlePromise0 (/usr/lib/node_modules/npm/node_modules/bluebird/js/release/promise.js:614:10)
npm verb stack     at Promise._settlePromises (/usr/lib/node_modules/npm/node_modules/bluebird/js/release/promise.js:690:18)
npm verb stack     at _drainQueueStep (/usr/lib/node_modules/npm/node_modules/bluebird/js/release/async.js:138:12)
npm verb stack     at _drainQueue (/usr/lib/node_modules/npm/node_modules/bluebird/js/release/async.js:131:9)
npm verb stack     at Async._drainQueues (/usr/lib/node_modules/npm/node_modules/bluebird/js/release/async.js:147:5)
npm verb stack     at Immediate.Async.drainQueues (/usr/lib/node_modules/npm/node_modules/bluebird/js/release/async.js:17:14)
npm verb stack     at runCallback (timers.js:810:20)
npm verb stack     at tryOnImmediate (timers.js:768:5)
npm verb stack     at processImmediate [as _immediateCallback] (timers.js:745:5)
npm verb cwd /usr/src/app
npm verb Linux 4.13.0-25-generic
npm verb argv "/usr/bin/node" "/usr/bin/npm" "ci" "--verbose"
npm verb node v8.15.0
npm verb npm  v6.7.0
npm ERR! err... (continued)

349 of 494 branches covered (70.65%)

742 of 906 relevant lines covered (81.9%)

13.09 hits per line