'tchmgr inform' should warn about too large tch file if the LARGE option is not set

A frequent problem with .tch files is that the .tch file was created without the LARGE option and the database silently grows across the 2 GB limit. This is a simple patch so that at least 'tchmgr inform' shows a warning:

--- tchmgr.c.orig 2009-07-20 23:05:56.000000000 +0200
+++ tchmgr.c 2009-08-11 21:47:07.000000000 +0200
@@ -538,6 +538,7 @@ static int procinform(const char *path,
     return 1;
   }
   bool err = false;
+ bool large = false;
   const char *npath = tchdbpath(hdb);
   if(!npath) npath = "(unknown)";
   printf("path: %s\n", npath);
@@ -565,14 +566,19 @@ static int procinform(const char *path,
   printf("modified time: %s\n", date);
   uint8_t opts = tchdbopts(hdb);
   printf("options:");
- if(opts & HDBTLARGE) printf(" large");
+ if(opts & HDBTLARGE) {
+ printf(" large");
+ large = true;}
   if(opts & HDBTDEFLATE) printf(" deflate");
   if(opts & HDBTBZIP) printf(" bzip");
   if(opts & HDBTTCBS) printf(" tcbs");
   if(opts & HDBTEXCODEC) printf(" excodec");
   printf("\n");
   printf("record number: %llu\n", (unsigned long long)tchdbrnum(hdb));
- printf("file size: %llu\n", (unsigned long long)tchdbfsiz(hdb));
+ unsigned long long size = (unsigned long long) tchdbfsiz(hdb);
+ printf("file size: %llu\n", size);
+ if (!large && (size >= 2147483648))
+ printf("WARNING: file size too large for a database without LARGE option\n");
   if(!tchdbclose(hdb)){
     if(!err) printerr(hdb);
     err = true;