BUG: apply spelling patch from Bas Couwenberg (fix #1633)

Modules/Applications/AppDimensionalityReduction/app/otbVectorDimensionalityReduction.cxx

@@ -143,7 +143,7 @@ private:
       "parameter can't be used for other models"); //
     MandatoryOff("pcadim");
     
-    AddParameter(ParameterType_Choice, "mode", "Writting mode"); //
+    AddParameter(ParameterType_Choice, "mode", "Writing mode"); //
     SetParameterDescription("mode", "This parameter determines if the output "
       "file is overwritten or updated [overwrite/update]. If an output file "
       "name is given, the original file is copied before creating the new features.");
@@ -325,7 +325,7 @@ private:
       else
         {
         otbAppLogFATAL(<< "Error when creating the output file" <<
-          GetParameterString("mode") << " : unsupported writting mode type");
+          GetParameterString("mode") << " : unsupported writing mode type");
         }
       }
 

Modules/Learning/DimensionalityReductionLearning/include/otbAutoencoderModel.h

@@ -178,7 +178,7 @@ private:
   itk::Array<double> m_Beta; // Sparsity regularization parameter
   double m_InitFactor; // Weight initialization factor (the weights are intialized at m_initfactor/sqrt(inputDimension)  )
 
-  bool m_WriteLearningCurve; // Flag for writting the learning curve into a txt file
+  bool m_WriteLearningCurve; // Flag for writing the learning curve into a txt file
   std::string m_LearningCurveFileName; // Name of the output learning curve printed after training
   bool m_WriteWeights;
 };