Fix 1996/jonth for macOS

The problem was the function pointer w(), which points to
XCreateWindow(), did not have the parameters and this caused a segfault
in macOS. Because it takes a lot of parameters I split the line up to
multiple lines by having a '\' at the end of lines (the entire code is
in #defined macros and two #includes).

1996/jonth/README.md

@@ -16,8 +16,7 @@ make all
 NOTE: this entry requires `X11/Xlib.h` header file and the X11 library to
 compile. macOS users running Mountain Lion and later will need to download and
 install [XQuartz](https://www.xquartz.org) in order to compile and run this
-entry. But see [bugs.md](/bugs.md) for a known problem with running this under
-macOS and with a workaround of sorts plus more information on where it fails.
+entry.
 
 
 ## To run: