K 10
svn:author
V 6
rlibby
K 8
svn:date
V 27
2020-12-18T08:40:33.504615Z
K 7
svn:log
V 380
MFC r350739-r350740 (by cem)

r350739:
Disable useless -Wformat-zero-length

It is part of -Wformat, which is enabled by -Wall.  Empty format strings are
well defined and it is perfectly reasonable to expect them in a formatting
interface.

r350740:
r350739 try #2

For some inexplicable reason, C++ compilers reject the -Wno- flag, and also
(ab)use CWARNFLAGS.

Reported by:	imp

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