Resolved some formatting issues.

src/Microsoft.ML.Data/Transforms/CopyColumnsTransform.cs

@@ -74,7 +74,6 @@ private static VersionInfo GetVersionInfo()
         public CopyColumnsTransform(IHostEnvironment env, IDataView input, string name, string source)
             : this(env, new Arguments(){ Column = new[] { new Column() { Source = source, Name = name }}}, input)
         {
-
         }
 
         public CopyColumnsTransform(IHostEnvironment env, Arguments args, IDataView input)

src/Microsoft.ML.Data/Transforms/NAFilter.cs

@@ -87,7 +87,6 @@ private static VersionInfo GetVersionInfo()
         public NAFilter(IHostEnvironment env, IDataView input, bool complement = Defaults.Complement, params string[] columns)
             : this(env, new Arguments() { Column = columns, Complement = complement }, input)
         {
-
         }
 
         public NAFilter(IHostEnvironment env, Arguments args, IDataView input)

src/Microsoft.ML.Transforms/BootstrapSampleTransform.cs

@@ -100,7 +100,6 @@ public BootstrapSampleTransform(IHostEnvironment env,
             int poolSize = Defaults.PoolSize)
             : this(env, new Arguments() { Complement = complement, Seed = seed, ShuffleInput = shuffleInput, PoolSize = poolSize }, input)
         {
-
         }
 
         private BootstrapSampleTransform(IHost host, ModelLoadContext ctx, IDataView input)