Fix how sauce runner and tags are parsed.

.travis.yml

@@ -7,7 +7,7 @@ env:
   global:
     - BIN="node" BUILD=false COMPAT=false MAKE=false OPTION="" SAUCE_LABS=false
     - SAUCE_USERNAME="lodash"
-    - secure: "LGVeh7z/x6hxGCtr1BfgCSRva691ChX+1bs4ecJE71QwsDNJwknqmblZm7hFSTkq7msSapSDV5P9sgr6fsmmHuY3311Vl04sneRpz8ge1ZUIbmMODI+tZAasxyvyjZJdOrTFZr89BWN6e/SddDxDKNF4n0O1DgUF4irrT+aUxUE="
+    - secure: "aFxaPI4NvlZHgXvfmNtUlYCIeiVpC4QzkdevGHc2FK27BJLnNTKNno9sBhaygURbQ83bYzfQ+fe8SMIzE7aLramAGILrT4DiWqfO+ihuB3EK1cahCbB6OionbIUI27Xzy+YukO+5lQmMP/dpVlwhIfR3qxmN4m7wXI+ExEemjZg="
   matrix:
     - BUILD="compat"
     - BUILD="modern"

test/saucelabs.js

@@ -28,7 +28,10 @@
       tunnelId = 'lodash_' + process.env.TRAVIS_JOB_NUMBER;
 
   var runner = process.argv.reduce(function(result, value) {
-    return optionToValue('runner', value) || result;
+    value = optionToValue('runner', value);
+    return value == null
+      ? result
+      : '/' + value.replace(/^\W+/, '');
   }, '/test/index.html');
 
   var sessionName = process.argv.reduce(function(result, value) {
@@ -36,7 +39,10 @@
   }, 'lodash tests');
 
   var tags = process.argv.reduce(function(result, value) {
-    return optionToArray('tags', value) || result;
+    value = optionToArray('tags', value);
+    return value.length
+      ? _.union(result, value)
+      : result;
   }, []);
 
   /** List of platforms to load the runner on */