Fixes in 1990/jaw

The program (and the generated program made by shark.sh) no longer use
perror(3) and instead use fprintf(3) (writing to stderr). This is mostly
because in macOS errno == 0 looks like an error.

Some updates to the shark.sh script were also made.

The bug status has been updated as there is apparently another bug
though I was sure it was solved when I last looked at it. It happens
with and without the above updates. I'm unsure about other things too
but these are not in the bugs.md yet as I'm not even sure what to say
just yet.

Added try.sh script which does some of the commands. However as there is
that bug it doesn't do any comparisons - for now.

bugs.md

@@ -579,46 +579,11 @@ You are welcome to try and fix it if you can!
 ### Source code: [1990/jaw/jaw.c](1990/jaw/jaw.c)
 ### Information: [1990/jaw/README.md](1990/jaw/README.md)
 
-[Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) fixed the scripts to
-work in modern systems. He notes however that the command in the try section,
-the one to test the official C entry, **appears** (the keyword!) to not work
-with macOS, giving:
-
-
-```sh
-$ echo "Quartz glyph jocks vend, fix, BMW." | compress | ./btoa | ./jaw
-oops: Undefined error: 0
-oops: Undefined error: 0
-```
-
-However this is because the entry uses `perror()` and it just so happens that
-the default `errno` of 0 gives that result. For instance if you run the
-following C program under macOS you will get undefined error but if you do it
-under Linux you'll likely get success.
-
-
-```c
-#include <stdio.h>
-#include <errno.h>
-#include <string.h>
-int main()
-{
-    errno = 0;
-    printf("%d, %s\n", errno, strerror(errno));
-}
-```
-
-In fact the condition which is in the `a()` function on line 18 of the entry
-namely:
-
-	I k>16)
-
-is true on both linux and macOS, with `k` being equal to 22!
-
-Should the entry use `perror()`? Perhaps not but we're not sure of its purpose
-so it should stay with this note.
-
-If you want to try and fix this (mis)feature, you are welcome to try.
+It seems like the scripts do not work correctly, where not all files are
+extracted. Some work was done to get them to work some but it does not appear
+that all files can be extracted. For instance in the [try.sh](1990/jaw/try.sh)
+script which Cody added it is supposed to add the README.md file to the archive
+and it did at one point (or so he recalls) but now it doesn't seem to happen.
 
 
 ## 1990 theorem