Two minor code optimizations

1. Use unsigned suffix in "print_flags" as shifting a signed integer 31 bits to the left may result in undefined behavior otherwise. This is uncritical as we have only 28 possible flags that can be set at the moment.
2. Prototype of logg was slightly different from actual definition in log.c. This had no effect

Signed-off-by: DL6ER <dl6er@dl6er.de>

dnsmasq_interface.c

@@ -794,7 +794,7 @@ void print_flags(unsigned int flags)
  unsigned int i;
  char *flagstr = calloc(256,sizeof(char));
  for(i = 0; i < sizeof(flags)*8; i++)
- if(flags & (1 << i))
+ if(flags & (1u << i))
  strcat(flagstr, flagnames[i]);
  logg(" Flags: %s", flagstr);
  free(flagstr);

routines.h

@@ -17,7 +17,7 @@ char * getUserName(void);
 void removepid(void);
 
 void open_FTL_log(bool test);
-void logg(const char* str, ...);
+void logg(const char* format, ...);
 void logg_struct_resize(const char* str, int to, int step);
 void log_counter_info(void);
 void format_memory_size(char *prefix, unsigned long int bytes, double *formated);