Normalize printed text

Signed-off-by: Richie Bendall <richiebendall@gmail.com>

k/KimL.kiml

@@ -1 +1 @@
-io.out "Hello World!"
+io.out "Hello World"

k/karel.kl

@@ -1,4 +1,4 @@
 PROGRAM hello_world
 BEGIN
-  WRITE('Hello, world!', CR)
+  WRITE('Hello World', CR)
 END hello_world

k/kitten.ktn

@@ -1 +1 @@
-"Hello, World" say
+"Hello World" say

k/kotlin.kt

@@ -1,5 +1,5 @@
 package hello
  
 fun main(args: Array<String>) {
-  println("Hello, world!")
+  println("Hello World")
 }

k/ksh.ksh

@@ -1,2 +1,2 @@
 #!/bin/ksh
-echo "Hello, World!"
+echo "Hello World"