fixes +fitz jet mismatch (#444)

With the recent discovery of a bug in `+fitz`,
urbit/urbit#6647, a jet mismatch was also
uncovered.
The `+fitz` jet erronously excludes all uppercase letters but the last
one from the compatibility check.

```
> +fitz ['AB' 'CB']
%.n
> (fitz 'AB' 'CB')
%.y
> +fitz ['AC' 'CB']
%.n
> (fitz 'AC' 'CB')
%.y
```

Here the `+fitz` generator is the fixed Hoon version.

pkg/noun/jets/f/fitz.c

@@ -5,63 +5,71 @@
 
 #include "noun.h"
 
+static u3_noun
+_fitz_fiz(u3_noun yaz,
+          u3_noun wix)
+{
+  c3_w yaz_w = u3r_met(3, yaz);
+  c3_w wix_w = u3r_met(3, wix);
+  c3_y yaz_y, wix_y;
 
-  static u3_noun
-  _fitz_fiz(u3_noun yaz,
-            u3_noun wix)
-  {
-    c3_w yaz_w = u3r_met(3, yaz);
-    c3_w wix_w = u3r_met(3, wix);
-    c3_y yaz_y, wix_y;
-
-    yaz_y = (0 == yaz_w) ? 0 : u3r_byte((yaz_w - 1), yaz);
-    if ( (yaz_y < 'A') || (yaz_y > 'Z') ) yaz_y = 0;
+  yaz_y = (0 == yaz_w) ? 0 : u3r_byte((yaz_w - 1), yaz);
+  if ( (yaz_y < 'A') || (yaz_y > 'Z') ) yaz_y = 0;
 
-    wix_y = (0 == wix_w) ? 0 : u3r_byte((wix_w - 1), wix);
-    if ( (wix_y < 'A') || (wix_y > 'Z') ) wix_y = 0;
+  wix_y = (0 == wix_w) ? 0 : u3r_byte((wix_w - 1), wix);
+  if ( (wix_y < 'A') || (wix_y > 'Z') ) wix_y = 0;
 
-    if ( yaz_y && wix_y ) {
-      if ( !wix_y || (wix_y > yaz_y) ) {
-        return c3n;
-      }
+  if ( yaz_y && wix_y ) {
+    if ( wix_y > yaz_y ) {
+      return c3n;
     }
-    return c3y;
   }
 
-  u3_noun
-  u3qf_fitz(u3_noun yaz,
-            u3_noun wix)
-  {
-    c3_w i_w, met_w = c3_min(u3r_met(3, yaz), u3r_met(3, wix));
+  return c3y;
+}
 
-    if ( c3n == _fitz_fiz(yaz, wix) ) {
-      return c3n;
+u3_noun
+u3qf_fitz(u3_noun yaz,
+          u3_noun wix)
+{
+  c3_w yet_w = u3r_met(3, yaz);
+  c3_w wet_w = u3r_met(3, wix);
+
+  c3_w i_w, met_w = c3_min(yet_w, wet_w);
+
+  if ( c3n == _fitz_fiz(yaz, wix) ) {
+    return c3n;
+  }
+  for ( i_w = 0; i_w < met_w; i_w++ ) {
+    c3_y yaz_y = u3r_byte(i_w, yaz);
+    c3_y wix_y = u3r_byte(i_w, wix);
+
+    if ( (i_w == (yet_w - 1)) && (yaz_y >= 'A') && (yaz_y <= 'Z')) {
+      return c3y;
     }
-    for ( i_w = 0; i_w < met_w; i_w++ ) {
-      c3_y yaz_y = u3r_byte(i_w, yaz);
-      c3_y wix_y = u3r_byte(i_w, wix);
 
-      if ( (yaz_y >= 'A') && (yaz_y <= 'Z') ) yaz_y = 0;
-      if ( (wix_y >= 'A') && (wix_y <= 'Z') ) wix_y = 0;
+    if ( (i_w == (wet_w - 1)) && (wix_y >= 'A') && (wix_y <= 'Z')) {
+      return c3y;
+    }
 
-      if ( yaz_y && wix_y && (yaz_y != wix_y) ) {
-        return c3n;
-      }
+    if ( yaz_y != wix_y ) {
+      return c3n;
     }
-    return c3y;
   }
+  return c3y;
+}
 
-  u3_noun
-  u3wf_fitz(u3_noun cor)
-  {
-    u3_noun yaz, wix;
+u3_noun
+u3wf_fitz(u3_noun cor)
+{
+  u3_noun yaz, wix;
 
-    if ( (c3n == u3r_mean(cor, u3x_sam_2, &yaz, u3x_sam_3, &wix, 0)) ||
-         (c3n == u3ud(yaz)) ||
-         (c3n == u3ud(wix)) )
-    {
-      return u3m_bail(c3__fail);
-    } else {
-      return u3qf_fitz(yaz, wix);
-    }
+  if ( (c3n == u3r_mean(cor, u3x_sam_2, &yaz, u3x_sam_3, &wix, 0)) ||
+       (c3n == u3ud(yaz)) ||
+       (c3n == u3ud(wix)) )
+  {
+    return u3m_bail(c3__fail);
+  } else {
+    return u3qf_fitz(yaz, wix);
   }
+}