Fix style inconsistencies

Author: AArnott

src/NerdBank.GitVersioning/VersionOracle.cs

@@ -265,7 +265,7 @@ private static LibGit2Sharp.Repository OpenGitRepo(string repoRoot)
         {
             Requires.NotNullOrEmpty(repoRoot, nameof(repoRoot));
             var gitDir = FindGitDir(repoRoot);
-            return gitDir == null ? null : new LibGit2Sharp.Repository(gitDir);            
+            return gitDir == null ? null : new LibGit2Sharp.Repository(gitDir);
         }
 
         private static string FindGitDir(string startingDir)
@@ -274,20 +274,25 @@ private static string FindGitDir(string startingDir)
             {
                 var dirOrFilePath = Path.Combine(startingDir, ".git");
                 if (Directory.Exists(dirOrFilePath))
+                {
                     return dirOrFilePath;
+                }
                 else if (File.Exists(dirOrFilePath))
                 {
                     var relativeGitDirPath = ReadGitDirFromFile(dirOrFilePath);
                     if (!String.IsNullOrWhiteSpace(relativeGitDirPath))
                     {
                         var fullGitDirPath = Path.GetFullPath(Path.Combine(startingDir, relativeGitDirPath));
                         if (Directory.Exists(fullGitDirPath))
+                        {
                             return fullGitDirPath;
+                        }
                     }
                 }
-                
+
                 startingDir = Path.GetDirectoryName(startingDir);
             }
+
             return null;
         }
 
@@ -304,7 +309,6 @@ private static string ReadGitDirFromFile(string fileName)
             }
         }
 
-
         private static Version GetAssemblyVersion(Version version, VersionOptions versionOptions)
         {
             // If there is no repo, "version" could have uninitialized components (-1).