K 10
svn:author
V 4
ache
K 8
svn:date
V 27
2016-09-06T00:33:54.440669Z
K 7
svn:log
V 287
MFC r305365

The bug:
$ echo x | awk '/[[:cntrl:]]/'
x

The NUL character in cntrl class truncates the pattern, and an empty
pattern matches anything. The patch skips NUL as a quick fix.

PR:     195792
Submitted by:   kdrakehp@zoho.com
Approved by:    bwk@cs.princeton.edu (the author)

END