Change calls to error_msg.* and strerror to use perror_msg.*.
diff --git a/console-tools/dumpkmap.c b/console-tools/dumpkmap.c
index 3ff5ef6..c5a2ea7 100644
--- a/console-tools/dumpkmap.c
+++ b/console-tools/dumpkmap.c
@@ -50,7 +50,7 @@
 
 	fd = open("/dev/tty0", O_RDWR);
 	if (fd < 0) {
-		error_msg("Error opening /dev/tty0: %s\n", strerror(errno));
+		perror_msg("Error opening /dev/tty0");
 		return EXIT_FAILURE;
 	}
 
diff --git a/console-tools/loadacm.c b/console-tools/loadacm.c
index a696640..52702bf 100644
--- a/console-tools/loadacm.c
+++ b/console-tools/loadacm.c
@@ -39,13 +39,11 @@
 
 	fd = open("/dev/tty", O_RDWR);
 	if (fd < 0) {
-		error_msg("Error opening /dev/tty1: %s\n", strerror(errno));
-		return EXIT_FAILURE;
+		perror_msg_and_die("Error opening /dev/tty1");
 	}
 
 	if (screen_map_load(fd, stdin)) {
-		error_msg("Error loading acm: %s\n", strerror(errno));
-		return EXIT_FAILURE;
+		perror_msg_and_die("Error loading acm");
 	}
 
 	write(fd, "\033(K", 3);