Use same repeat count in the 5.2.0 installer as used for 4.5.3

Appears to be more reliable

Author: Vogtinator

ndless/src/installer-5.2/Problem1_bot_5.2.0.xml

@@ -15,7 +15,7 @@
                     gc:drawString("(this line is just deco)", 198 + 0, 53 + 30, "top")
 
                     s = ""
-                    s = string.rep(installer, 1024)
+                    s = string.rep(installer, 768)
 
                     timer.start(0.2)
                 end