remove all trailing whitespace (#2344)

* remove all trailing whitespace

* fix one scala file


Former-commit-id: c73a66046649b189f5df617fefa6e099b1c05426

installdata/scripts/prune_main.py

@@ -19,4 +19,3 @@ for file in os.listdir(base):
         if int(file) < current_build_number - 1:
             print('Removing old build ' + file)
             shutil.rmtree(file)
-        

src/main/scala/net/eagle0/eagle/library/actions/impl/command/HandleCapturedHeroesCommand.scala

@@ -221,8 +221,7 @@ object HandleCapturedHeroesCommand
       )
     commandRequire(
       chosenHwo.isDefined,
-      s"""Selected heroId ${selectedCommand.heroId} is not in 
-          |${availableCommand.availableHeroes
+      s"""Selected heroId ${selectedCommand.heroId} is not in ${availableCommand.availableHeroes
            .map(_.getHero.id)}""".stripMargin
     )