Track down required changes in 2001/anonymous

In order to know what had to change exactly I tested this out (though
it's possible I forgot to initially document changes and so I did not
test everything) and I have documented it in the README.md. The required
changes:

- remove infinite recursion from main(): move the body of main() to
another function.

- add #include <sys/mman.h> for mmap().

Without either this did not work. I also changed (in case of
non-standardised constants) '3' in the call to mmap() to be
PROT_READ|PROT_WRITE but this appears to not be strictly required.

I added the script try.me.sh which has more commands than the previous
try section to show how it works and what changes etc.

Updated .gitignore as the above script creates some.

Make make all attempt to compile anonymous.ten.c: it's an important part
of the program though it can work on other 32-bit ELF binaries.

Update bugs.md explaining why this won't work with macOS.

bugs.md

@@ -195,6 +195,8 @@ Please help us by writing alternative code!
 
 ## STATUS: main() function args not allowed - please help us fix
 
+At this time all of these have been fixed but the below is what it's all about.
+
 Entries with this status have a problem in that the args to main() are not of a
 specific type due to this being allowed in earlier C. Some compilers like clang
 have a deficiency where they do not allow this so these entries do not work with
@@ -1051,6 +1053,24 @@ fire](https://en.wikipedia.org/wiki/Halt_and_Catch_Fire_(computing))! :-) ).
 
 # 2001
 
+## [2001/anonymous](2001/anonymous/anonymous.c) ([README.md](2001/anonymous/README.md))
+## STATUS: INABIAF - please **DO NOT** fix
+
+[Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) fixed this so that it
+works in modern systems but he notes that the program
+[anonymous.ten.c](2001/anonymous/anonymous.ten.c) **MUST** be compiled as a
+32-bit ELF binary! This because the program acts on 32-bit ELF binaries. If you
+cannot use `-m32` on this file the program **will** almost certainly crash but
+in no case will it work properly.
+
+This means that for macOS it will not work. Why will this not work in macOS?
+Because Apple saw to it to make it very hard to compile 32-bit binaries (thanks
+Apple for ruining some IOCCC entries! :-) :-( ). This appears to be even harder
+with the Apple silicon chip. Thus this entry will not work with macOS unless you
+have an older, out of date version.
+
+Other BSD Unices were not tested.
+
 ## [2001/bellard](2001/bellard/bellard.c) ([README.md](2001/bellard/README.md))
 ## STATUS: doesn't work with some platforms - please help us fix