small refactoring of lcdproc client: get rid of global variables tmp & buffer

clients/lcdproc/iface.h

@@ -16,7 +16,7 @@
 
 #define MAX_INTERFACES 3  /* max number of interfaces in multi-interface mode */
 
-int iface_screen (int rep, int display, int *flags_ptr);
+int iface_screen(int rep, int display, int *flags_ptr);
 IfaceInfo iface[MAX_INTERFACES];  /* interface info */
 
 /************************/
@@ -24,28 +24,28 @@ IfaceInfo iface[MAX_INTERFACES];  /* interface info */
 /************************/
 
 /* read interface stats from /proc/net/dev */
-int get_iface_stats (IfaceInfo *interface);
+int get_iface_stats(IfaceInfo *interface);
 
 /* send initial commands to server to add the speed screen */
-void initialize_speed_screen (void);
+void initialize_speed_screen(void);
 
 /* send initial commands to server to add the transfer screen */
 void initialize_transfer_screen(void);
 
 /* format the time in ASCII */
-void get_time_string (char *buff, time_t last_online);
+void get_time_string(char *buff, time_t last_online);
 
 /* format value, scaling value and adding proper suffixes */
-void format_value (char *buff, double value, char *unit);
+void format_value(char *buff, double value, char *unit);
 
 /* format value, scaling value and adding proper suffixes (for multi-interface 
  * mode) */
 void format_value_multi_interface(char *buff, double value, char *unit);
 
 /* actualize widgets values in speed screen */
-void actualize_speed_screen (IfaceInfo *iface, unsigned int interval, int index);
+void actualize_speed_screen(IfaceInfo *iface, unsigned int interval, int index);
 
 /* actualize widgets values in transfer screen */
-void actualize_transfer_screen (IfaceInfo *iface, int index);
+void actualize_transfer_screen(IfaceInfo *iface, int index);
 
 #endif