Updating tests to reflect new error message in csv2json

Added comma to the error message.

Author: mrodrig

test/testComma.js

@@ -289,14 +289,14 @@ var csv2jsonTests = function () {
 
             it('should throw an error about not having been passed data - 1', function (done) {
                 converter.csv2json(null, function (err, json) {
-                    err.message.should.equal('Cannot call csv2json on null');
+                    err.message.should.equal('Cannot call csv2json on null.');
                     done();
                 }, options);
             });
 
             it('should throw an error about not having been passed data - 2', function (done) {
                 converter.csv2json(undefined, function (err, json) {
-                    err.message.should.equal('Cannot call csv2json on undefined');
+                    err.message.should.equal('Cannot call csv2json on undefined.');
                     done();
                 }, options);
             });
@@ -389,14 +389,14 @@ var csv2jsonTests = function () {
 
             it('should throw an error about not having been passed data - 1', function (done) {
                 converter.csv2json(null, function (err, json) {
-                    err.message.should.equal('Cannot call csv2json on null');
+                    err.message.should.equal('Cannot call csv2json on null.');
                     done();
                 });
             });
 
             it('should throw an error about not having been passed data - 2', function (done) {
                 converter.csv2json(undefined, function (err, json) {
-                    err.message.should.equal('Cannot call csv2json on undefined');
+                    err.message.should.equal('Cannot call csv2json on undefined.');
                     done();
                 });
             });
@@ -511,4 +511,4 @@ module.exports = {
             csv2jsonTests();
         });
     }
-};
+};