Index: ink.c
===================================================================
--- ink.c
+++ ink.c	2010-03-08 11:15:48.000000000 +0100
@@ -36,7 +36,7 @@
   printf(PACKAGE_STRING);
   printf("\n");
   libinklevel_version_string = get_version_string();
-  printf(libinklevel_version_string);
+  printf(libinklevel_version_string, "%s") ;
   printf("\n");
 }
 
@@ -235,7 +235,7 @@
     for(i = 0; i < MAX_CARTRIDGE_TYPES; i++) {
       if (threshold == -1 || level->levels[i][INDEX_LEVEL] <= threshold) {
 	if (headerNeeded) {
-	  printf(headerline);
+	  printf(headerline, "%s");
 	  printf("%s\n\n", level->model);
 	  headerNeeded = 0;
 	}