* Ouch, parseHash32 was completely broken. All digits >= 4 were

parsed as 4.

  For a moment I worried that printHash32 was broken, and that would
  have been really, *really* bad ;-)

src/libutil/hash.cc

@@ -178,7 +178,7 @@ Hash parseHash32(HashType ht, const string & s)
     for (unsigned int i = 0; i < s.length(); ++i) {
         char c = s[i];
         unsigned char digit;
-        for (digit = 0; digit < sizeof(chars); ++digit) /* !!! slow */
+        for (digit = 0; digit < base32Chars.size(); ++digit) /* !!! slow */
             if (chars[digit] == c) break;
         if (digit >= 32)
             throw Error(format("invalid base-32 hash `%1%'") % s);