K 10
svn:author
V 8
cperciva
K 8
svn:date
V 27
2010-12-29T05:13:21.166114Z
K 7
svn:log
V 215
A lack of console input is not the same thing as a byte of \0 input.
Correctly return -1 from cngetc when no input is available to be read.

This fixes the '(CTRL-C to abort)' spam while dumping.

MFC after:	3 days

END