Use stdout(4) instead of stderr(4) for -v, -h

Closes GH-18.

Author: wooorm

lib/index.js

@@ -37,7 +37,7 @@ function start(cliConfig) {
   }
 
   if (config.help) {
-    process.stderr.write(
+    process.stdout.write(
       [
         'Usage: ' + cliConfig.name + ' [options] [path | glob ...]',
         '',
@@ -55,7 +55,7 @@ function start(cliConfig) {
   }
 
   if (config.version) {
-    process.stderr.write(cliConfig.version + '\n', noop)
+    process.stdout.write(cliConfig.version + '\n', noop)
 
     return
   }

test/index.js

@@ -162,7 +162,7 @@ test('unified-args', function(t) {
       execa(bin, [flag]).then(onsuccess, st.fail)
 
       function onsuccess(res) {
-        st.deepEqual([res.stdout, res.stderr], ['', expected], 'should work')
+        st.deepEqual([res.stdout, res.stderr], [expected, ''], 'should work')
       }
     })
   })
@@ -174,7 +174,7 @@ test('unified-args', function(t) {
       execa(bin, [flag]).then(onsuccess, st.fail)
 
       function onsuccess(res) {
-        st.deepEqual([res.stdout, res.stderr], ['', '0.0.0'], 'should work')
+        st.deepEqual([res.stdout, res.stderr], ['0.0.0', ''], 'should work')
       }
     })
   })