[bincimap] patch to 1.1.8 solves problem with regcomp

[HIROSHIMA Naoki]

hi there,

with freebsd's regcomp, "^INBOX/[^\/]*?/[^\/]*$" will simply end up with 
error `REG_BADRPT'. so, binc on my freebsd box will never list any 
folders by imap command such as `list "" "INBOX/%/%"'.

i don't know whether the syntax above is actually ok but freebsd is too 
square, or linux is too flexible.

but i think my patch is reasonable enough for even linux, too.

if someone is using freebsd or other system based upon ``square'' 
regcomp implementation (so that you can't see any deeper folders), try 
this patch.

thanks,
-- Hiroshima
--- src/util/convert.h.orig     Mon May  5 10:42:20 2003
+++ src/util/convert.h  Tue May 27 16:55:32 2003
@@ -258,10 +258,10 @@
        regex += "\\";
        regex += *i;
       } else if (*i == '*')
-       regex += ".*?";
+       regex += "(.*)?";
        else if (*i == '%') {
-       regex += "[^\\";
+       regex += "([^\\";
        regex += delimiter;
-       regex += "]*?";
+       regex += "]*)?";
       } else regex += *i;
     }