fixes 0.13 compat

Author: jtjeferreira

src/main/scala-sbt-0.13/com/github/tkawachi/sbtlock/Compat.scala

@@ -2,4 +2,5 @@ package com.github.tkawachi.sbtlock
 
 object Compat {
   val dependencyOverridesType: String = "Set"
+  def syntax(config: String, key: String) = s"$key in $config"
 }

src/main/scala-sbt-1.0/com/github/tkawachi/sbtlock/Compat.scala

@@ -2,4 +2,5 @@ package com.github.tkawachi.sbtlock
 
 object Compat {
   val dependencyOverridesType: String = "Seq"
+  def syntax(config: String, key: String) = s"$config / $key"
 }

src/main/scala/com/github/tkawachi/sbtlock/SbtLock.scala

@@ -29,8 +29,8 @@ object SbtLock {
       s"""// DON'T EDIT THIS FILE.
          |// This file is auto generated by ${BuildInfo.name} ${BuildInfo.version}.
          |// ${BuildInfo._url}
-         |Compile / dependencyOverrides ++= {
-         |  if (!(ThisBuild / sbtLockHashIsUpToDate).value && sbtLockIgnoreOverridesOnStaleHash.value) {
+         |${Compat.syntax("Compile", "dependencyOverrides")} ++= {
+         |  if (!(${Compat.syntax("ThisBuild", "sbtLockHashIsUpToDate")}).value && sbtLockIgnoreOverridesOnStaleHash.value) {
          |    ${Compat.dependencyOverridesType}.empty
          |  } else {
          |    ${Compat.dependencyOverridesType}(