integrate cfgperl changes into mainline

diff --cc pod/perlfunc.pod
Simple merge
diff --cc t/op/grent.t
Simple merge
diff --cc util.c
Simple merge
		1	2
pod/perlfunc.pod	patch \|	diff1 \|	diff2 \|	blob \| history
t/op/grent.t	patch \|	diff1 \|	diff2 \|	blob \| history
util.c	patch \|	diff1 \|	diff2 \|	blob \| history