tests: support IANA compliant header messages

This commit allows the tests to pass when the node HTTP server uses IANA
compliant header messages rather than the messages the server used to
use. This prevents future test breakage caused by
nodejs/node#1470, a pull request tracked for
node 3.0.0 semver-major release. See:
nodejs/node@235036e

The only pertinent status code change is the 302 code, which used to be
"Moved Temporarily" but is now "Found", according to the document here:
http://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml

test/res.redirect.js

@@ -85,7 +85,7 @@ describe('res', function(){
       .set('Accept', 'text/html')
       .end(function(err, res){
         res.headers.should.have.property('location', 'http://google.com');
-        res.text.should.equal('<p>Moved Temporarily. Redirecting to <a href="http://google.com">http://google.com</a></p>');
+        res.text.should.match(/<p>(Moved Temporarily|Found). Redirecting to <a href="http:\/\/google.com">http:\/\/google.com<\/a><\/p>/);
         done();
       })
     })
@@ -102,7 +102,7 @@ describe('res', function(){
       .set('Host', 'http://example.com')
       .set('Accept', 'text/html')
       .end(function(err, res){
-        res.text.should.equal('<p>Moved Temporarily. Redirecting to <a href="&lt;lame&gt;">&lt;lame&gt;</a></p>');
+        res.text.should.match(/<p>(Moved Temporarily|Found). Redirecting to <a href="&lt;lame&gt;">&lt;lame&gt;<\/a><\/p>/);
         done();
       })
     })
@@ -136,8 +136,8 @@ describe('res', function(){
       .set('Accept', 'text/plain, */*')
       .end(function(err, res){
         res.headers.should.have.property('location', 'http://google.com');
-        res.headers.should.have.property('content-length', '51');
-        res.text.should.equal('Moved Temporarily. Redirecting to http://google.com');
+        res.headers.should.have.property('content-length');
+        res.text.should.match(/(Moved Temporarily|Found). Redirecting to http:\/\/google.com/);
         done();
       })
     })
@@ -154,7 +154,7 @@ describe('res', function(){
       .set('Host', 'http://example.com')
       .set('Accept', 'text/plain, */*')
       .end(function(err, res){
-        res.text.should.equal('Moved Temporarily. Redirecting to http://example.com/?param=%3Cscript%3Ealert(%22hax%22);%3C/script%3E');
+        res.text.should.match(/(Moved Temporarily|Found). Redirecting to http:\/\/example.com\/\?param=%3Cscript%3Ealert\(%22hax%22\);%3C\/script%3E/);
         done();
       })
     })