don't know why but exclude a private method for mima

Author: mengxr

project/MimaExcludes.scala

@@ -110,6 +110,10 @@ object MimaExcludes {
             ProblemFilters.exclude[MissingClassProblem]("org.apache.spark.mllib.util.LabelParser$"),
             ProblemFilters.exclude[MissingClassProblem]("org.apache.spark.mllib.util.MulticlassLabelParser"),
             ProblemFilters.exclude[MissingClassProblem]("org.apache.spark.mllib.util.MulticlassLabelParser$")
+          ) ++ 
+          Seq ( // package-private classes removed in MLlib
+            ProblemFilters.exclude[MissingMethodProblem](
+              "org.apache.spark.mllib.regression.GeneralizedLinearAlgorithm.org$apache$spark$mllib$regression$GeneralizedLinearAlgorithm$$prependOne")
           )
         case v if v.startsWith("1.0") =>
           Seq(