cache: Handle cases where git url contains host more than once

Slight fixup for npm#3224

Author: isaacs

lib/cache.js

@@ -527,7 +527,8 @@ function archiveGitRemote (p, u, co, origUrl, cb) {
       var spo = origUrl.split(parsed.host)
       var spr = resolved.split(parsed.host)
       if (spo[1].charAt(0) === ':' && spr[1].charAt(0) === '/')
-        resolved = spr[0] + parsed.host + spr[1].slice(1)
+        spr[1] = spr[1].slice(1)
+      resolved = spr.join(parsed.host)
 
       log.verbose('resolved git url', resolved)
       next()