fix(write): avoid another cb never called situation

Author: zkat

lib/content/write.js

@@ -112,7 +112,7 @@ function pipeToTmp (inputStream, cache, tmpTarget, opts, errCheck) {
     errCheck()
     return pipe(inputStream, hashStream, outStream).then(() => {
       return {integrity, size}
-    }, err => {
+    }).catch(err => {
       return rimraf(tmpTarget).then(() => { throw err })
     })
   })