WINTERMUTE: Fix Split() method of ext_string

It's hard to believe, but this fixes bug "#10432" WME Carol Reed
Mysteries hint system not working.

Carol Reed hint system happen to heavily use line.Split(";") results,
which were wrong by 1 byte (delimeter was appended to result while it
shouldn't be).

I started with decompiling Carol Reed source code, reproducing issue
with a stand-alone test project (which worked with WME and showed [null]
with ScummVM). then minimized it to a minimal testcase:

var line = new String("New Goal;Visit Christina at the Art
Museum;1;0;S;;");
var ar = line.Split(";");
if((ar[0] == "New Goal")) { var g = ar[1]; }

0 files changed, 0 insertions, 0 deletions