Fix missing semicolon from last commit

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39645 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wx-config.in

@@ -459,7 +459,7 @@ is_set()            { [ "x`eval echo \"\\\${$1-unset}\"`" != "xunset" ]; }
 
 # not _cmd _args...
 # true iff _cmd is false
-not()               { if "$@"; then false; else true; fi }
+not()               { if "$@"; then false; else true; fi; }
 
 # do_find_best_delegate _unbound-options
 # The real worker part of find_best_delegate below.  Recurses though all