Merge pull request #1111 from DanielRose/typo

Fix typo.

Author: gep13

src/GitVersionCore.Tests/ConfigProviderTests.cs

@@ -322,7 +322,7 @@ public void WarnOnObsoleteIsDevelopBranchConfigurationSetting()
             LegacyConfigNotifier.Notify(new StringReader(text));
         });
 
-        const string expectedMessage = @"'is-develop' is deprecated, use 'track-release-branches' instead.";
+        const string expectedMessage = @"'is-develop' is deprecated, use 'tracks-release-branches' instead.";
         exception.Message.ShouldContain(expectedMessage);
     }
 }

src/GitVersionCore/Configuration/LegacyConfigNotifier.cs

@@ -53,7 +53,7 @@ public static void Notify(StringReader reader)
                 issues.Add("release-branch-tag has been replaced by branch specific configuration. See http://gitversion.readthedocs.org/en/latest/configuration/#branch-configuration");
 
             if (legacyConfig.Branches != null && legacyConfig.Branches.Any(branches => branches.Value.IsDevelop != null))
-                issues.Add("'is-develop' is deprecated, use 'track-release-branches' instead. See http://gitversion.readthedocs.org/en/latest/configuration/#branch-configuration");
+                issues.Add("'is-develop' is deprecated, use 'tracks-release-branches' instead. See http://gitversion.readthedocs.org/en/latest/configuration/#branch-configuration");
 
             if (issues.Any())
                 throw new OldConfigurationException("GitVersion configuration file contains old configuration, please fix the following errors:\r\n" + string.Join("\r\n", issues));