Handle exception if `git` is not found

src/Generator/Utils/Utils.cs

@@ -84,7 +84,7 @@ namespace CppSharp
         {
             while (stringBuilder.Length > 0 && stringBuilder[0] == '_')
                 stringBuilder.Remove(0, 1);
-            while (stringBuilder.Length > 0 && stringBuilder[stringBuilder.Length - 1] == '_')
+            while (stringBuilder.Length > 0 && stringBuilder[^1] == '_')
                 stringBuilder.Remove(stringBuilder.Length - 1, 1);
         }
     }
@@ -135,6 +135,8 @@ namespace CppSharp
     public static class GeneratorHelpers
     {
         public static NewLineType? GetNewLineTypeFromGitConfig(string outputDir)
+        {
+            try
             {
                 if (!bool.TryParse(
                         ProcessHelper.RunFrom(outputDir,
@@ -178,5 +180,10 @@ namespace CppSharp
                     _ => null
                 };
             }
+            catch (Exception)
+            {
+                return null;
+            }
+        }
     }
 }