Change calls to error_msg.* and strerror to use perror_msg.*.
diff --git a/busybox.c b/busybox.c
index e6f25af..0439fb5 100644
--- a/busybox.c
+++ b/busybox.c
@@ -54,7 +54,7 @@
 	if (len != -1) {
 		path[len] = 0;
 	} else {
-		error_msg("%s: %s\n", proc, strerror(errno));
+		perror_msg("%s", proc);
 		return NULL;
 	}
 	return strdup(path);
@@ -78,7 +78,7 @@
 		rc = Link(busybox, command);
 
 		if (rc) {
-			error_msg("%s: %s\n", command, strerror(errno));
+			perror_msg("%s", command);
 		}
 	}
 }