ed

commit 1435ae52c39e108c0764872377ed478e610cb4b5
parent 28c4ead6d7afb7c1f3bf6894d7570c8f2cfc98d3
Author: Hiltjo Posthuma <hiltjo@codemadness.org>
Date:   Tue,  1 Dec 2015 18:42:59 +0100

ed: when there is no previous cmd give an error (OpenBSD msg)

Diffstat:
M
ed.c
 | 
2
++

1 file changed, 2 insertions(+), 0 deletions(-)
diff --git a/ed.c b/ed.c
@@ -691,6 +691,8 @@ execsh(void)
 			error("out of memory");
 	}
 	system(cmd);
+	if (!cmd)
+		error("no previous command");
 	puts("!");
 }