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

clients/lcdproc/mode.h

@@ -3,14 +3,12 @@
 
 #include "main.h"
 
-//TODO: get rid of these global variables!
-extern char *tmp;
-extern char *buffer;
 
-int mode_init ();
-void mode_close ();
+int mode_init();
+void mode_close();
 
-int update_screen (mode * m, int display);
-int credit_screen (int rep, int display, int *flags_ptr);
+int update_screen(mode * m, int display);
+
+int credit_screen(int rep, int display, int *flags_ptr);
 
 #endif