Fix tests

tests/frontpage.d.ref

@@ -10,5 +10,5 @@ void main()
         ++lines;
         sumLength += line.length;
     }
-    writeln("Average line length: ", lines ? sumLength / lines:0);
+    writeln("Average line length: ", lines ? sumLength / lines : 0);
 }

tests/guessnumber.d.ref

@@ -30,6 +30,6 @@ void main()
             writeln("  Well guessed.");
             break;
         }
-        writeln(answer < target ? "  Too low.":"  Too high.");
+        writeln(answer < target ? "  Too low." : "  Too high.");
     }
 }