exec: Better adhere to possible vfork restrictions
commit8f7471a0fb00587a3cd6e6c12da1adba6c7dc96a
authorSteve Bennett <steveb@workware.net.au>
Sun, 8 Jul 2018 09:13:41 +0000 (8 19:13 +1000)
committerSteve Bennett <steveb@workware.net.au>
Sun, 8 Jul 2018 11:48:04 +0000 (8 21:48 +1000)
treefc3ff203719676c9a785612722eb42e281c2ffbe
parentef04ac052f84d008ab903dca281f6650605536fd
exec: Better adhere to possible vfork restrictions

Avoid modification of any variables on the parents stack.
Avoid use of stdio in the event that execve fails.

Signed-off-by: Steve Bennett <steveb@workware.net.au>
jim-exec.c