corrected github username

MultiTheftAuto/mtaserver

@@ -57,7 +57,7 @@ logdays="7"
 # Github Branch Select
 # Allows for the use of different function files
 # from a different repo and/or branch.
-githubuser="dgibbs64"
+githubuser="GameServerManagers"
 githubrepo="linuxgsm"
 githubbranch="master"