MFC r230212:

MFC r230212:
sh: Fix execution of multiple statements in a trap when evalskip is set

Before this fix, only the first statement of the trap was executed if
evalskip was set. This is for example the case when:
    o  "-e" is set for this shell
    o  a trap is set on EXIT
    o  a function returns 1 and causes the script to abort

Reviewed by:	jilles
Sponsored by:	Yakaz (http://www.yakaz.com)

git-svn-id: svn://svn.freebsd.org/base/stable/8@231086 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f