'simple' error message functions by Loic Grenie <loic.grenie@gmail.com>.
263 bytes saved.

diff --git a/shell/lash.c b/shell/lash.c
index af3a8f8..b7a0a6a 100644
--- a/shell/lash.c
+++ b/shell/lash.c
@@ -1159,7 +1159,7 @@
 
 	/* Do not use bb_perror_msg_and_die() here, since we must not
 	 * call exit() but should call _exit() instead */
-	bb_perror_msg("%s", child->argv[0]);
+	bb_simple_perror_msg(child->argv[0]);
 	_exit(EXIT_FAILURE);
 }