*: make exec failure message more consistent

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

miscutils/time.c

@@ -380,7 +380,7 @@ static void run_command(char *const *cmd, resource_t *resp)
 		   versus merely warnings if the cast is left off.  */
 		BB_EXECVP(cmd[0], cmd);
 		xfunc_error_retval = (errno == ENOENT ? 127 : 126);
-		bb_error_msg_and_die("can't run '%s'", cmd[0]);
+		bb_perror_msg_and_die("can't execute '%s'", cmd[0]);
 	}
 
 	/* Have signals kill the child but not self (if possible).  */