Change bug status in 1992/gson

An additional look shows that the gets(3) call is for the dictionary
file. It is highly unlikely (though not impossible) that the dictionary
file would ever have a line 256 in length and this as well as because it
was documented is why I changed the buffer size back to the original.

The bug status does still suggest it would be nice if fgets(3) could be
used but it also lists the bugs and limitations the author stated in the
first place which actually does refer to the 256 limit.

I moved the notice to those who want a challenge up a bit in the
README.md file to be right above obfuscatory notes rather than before
those notes get into the details.

bugs.md

@@ -1071,22 +1071,34 @@ entry itself. Can you fix the actual entry? You are welcome to try and do so.
 ### Information: [1992/gson/index.html](1992/gson/index.html)
 
 Cody changed it so that the buffer size is `ARG_MAX+1` to try and get past the
-problem of `gets()` being used in a more complex way.
+problem of `gets()` being used in a more complex way. It is most unlikely that
+the dictionary file will ever have a line longer than 256 but even so it would
+be ideal if the code used `fgets(3)` instead. A tip on how `gets(3)` is being
+used:
 
-It would be ideal if it were to use `fgets()` though. A tip on how
-`gets()` is being used from Cody:
-
-Previously it had a buffer size of 256 which could easily overflow. In this
+Previously it had a buffer size of 256 for reading in the dictionary lines. In this
 entry `gets(3)` is used in a more complicated way: first `m` is set to `*++p` in
 a for loop where `p` is argv. Later `m` is set to point to `h` which was of size
 256\. `gets(3)` is called as `m = gets(m)`) but trying to change it to use
-`fgets(3)` proved more a problem. Since the input must come from the command
-line Cody changed the buffer size to `ARG_MAX+1` which should be enough (again
-theoretically) especially since the command expects redirecting a dictionary
-file as part of the command line. This also makes it possible for longer strings
-to be read (in case the `gets(3)` was not used in a loop).
 
 
+### STATUS: INABIAF - please **DO NOT** fix
+
+On the other hand, the author noted the following bugs and limitations:
+
+- There is no error checking.
+- Standard input must be seekable, so you can't pipe the dictionary into `AG`.
+- The input sentence and each line in the dictionary may contain at most 32
+distinct letters, and each letter may occur at most 15 times.
+- Words in the dictionary may be at most 255 bytes long.
+- `AG` cannot handle characters that sign-extend to negative values.
+- Although `AG` works on both 16-bit and 32-bit machines, the size of the problems
+it can solve is severely limited on machines that limit the stack size to 64k or
+less.
+
+... so whether or not the `gets(3)` should be changed to `fgets(3)` is up to
+debate.
+
 
 <div id="1992_kivinen">
 ## 1992/kivinen