s/timout/timeout/

Fixes CLIENT-130

Change-Id: I25b0174adf19c56d39068a7b98e0f613dcdaccc3
Reviewed-on: http://gerrit.dmdirc.com/1808
Reviewed-by: Chris Smith <chris@dmdirc.com>
Automatic-Compile: DMDirc Local Commits <dmdirc@googlemail.com>

src/com/dmdirc/addons/osd/OsdCommand.java

@@ -117,7 +117,7 @@ public final class OsdCommand extends Command implements
     @Override
     public String getHelp() {
         return "osd --close - closes all OSD windows\n"
-                + "osd [--timout <delay in seconds>] <message> - show the "
+                + "osd [--timeout <delay in seconds>] <message> - show the "
                 + "specified message in an OSD window";
     }