fixes in mysqltest and mysqlbinlog

trying to understand why --bootstrap option does not create tables
on disk, hope the problem will be fixed when I pull, if not will
debug, but need to commit in order to pull


client/mysqltest.c:
  added safe_connect() and chaned all calls to mysql_real_connect() to
  safe_connect()
mysql-test/install_test_db.sh:
  more diagnostic
sql/log_event.cc:
  fixed compile error in mysqlbinlog

sql/log_event.cc

@@ -30,6 +30,7 @@ static void pretty_print_str(FILE* file, char* str, int len)
   fputc('\'', file);
   while (str < end)
   {
+    char c;
     switch ((c=*str++)) {
     case '\n': fprintf(file, "\\n"); break;
     case '\r': fprintf(file, "\\r"); break;